title: django models/admin issue - admin displays table twice
body: <p>We moved a django model from one app to another ("PollRunForJira" was moved from "reports" to "jira_fat").</p>
  
  <p>All the code seems clean from the old model and the django_migrations DB table is clean from the old model too.</p>
  
  <p>Still the django admin display the 2 models:
  <a href="https://i.stack.imgur.com/rdV7K.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rdV7K.png" alt="enter image description here"></a></p>
  
  <p>Here's the new-model's admin.py:</p>
  
  <pre><code>from django.contrib import admin  
  from jira_fat.models import PollRunForJira
  
  @admin.register(PollRunForJira)
  class RunJiraAdmin(admin.ModelAdmin):
      list_display = [f.name for f in PollRunForJira._meta.fields]
      search_fields = [f.name for f in PollRunForJira._meta.fields]
  </code></pre>
  
  <p>Here's the stack-trace when trying to access the old's model admin page:</p>
  
  <pre><code>ProgrammingError at /admin/reports/pollrunforjira/
  relation "fat_poll_run_for_jira" does not exist
  LINE 1: SELECT COUNT(*) AS "__count" FROM "fat_poll_run_for_jira"
                                            ^
  Request Method: GET
  Request URL:    http://vd-yanayt:8000/admin/reports/pollrunforjira/
  Django Version: 1.10.4
  Exception Type: ProgrammingError
  Exception Value:    
  relation "fat_poll_run_for_jira" does not exist
  LINE 1: SELECT COUNT(*) AS "__count" FROM "fat_poll_run_for_jira"
                                            ^
  Exception Location: /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/backends/utils.py in execute, line 64
  Python Executable:  /home/yanayt/envs/py2.7/bin/python
  Python Version: 2.7.5
  Python Path:    
  ['/home/yanayt/dev/fat/fatsite/run',
   '/home/yanayt/dev/fat/fatsite',
   '/home/yanayt/dev/fat/fatsite',
   '/home/yanayt/dev/gitlab-fw',
   '/home/yanayt/dev/fat',
   '/home/yanayt/dev/gitlab-fw/modules',
   '/home/yanayt/dev/fat/tests_and_pocs/neural_project',
   '/home/yanayt/envs/py2.7/lib64/python27.zip',
   '/home/yanayt/envs/py2.7/lib64/python2.7',
   '/home/yanayt/envs/py2.7/lib64/python2.7/plat-linux2',
   '/home/yanayt/envs/py2.7/lib64/python2.7/lib-tk',
   '/home/yanayt/envs/py2.7/lib64/python2.7/lib-old',
   '/home/yanayt/envs/py2.7/lib64/python2.7/lib-dynload',
   '/usr/lib64/python2.7',
   '/usr/lib/python2.7',
   '/home/yanayt/envs/py2.7/lib/python2.7/site-packages']
  Server time:    Thu, 9 Mar 2017 08:25:11 +0000
  Traceback Switch to copy-and-paste view
  
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/core/handlers/exception.py in inner
              response = get_response(request) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/core/handlers/base.py in _get_response
                  response = self.process_exception_by_middleware(e, request) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/core/handlers/base.py in _get_response
                  response = wrapped_callback(request, *callback_args, **callback_kwargs) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/contrib/admin/options.py in wrapper
                  return self.admin_site.admin_view(view)(*args, **kwargs) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/utils/decorators.py in _wrapped_view
                      response = view_func(request, *args, **kwargs) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/views/decorators/cache.py in _wrapped_view_func
          response = view_func(request, *args, **kwargs) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/contrib/admin/sites.py in inner
              return view(request, *args, **kwargs) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/utils/decorators.py in _wrapper
              return bound_func(*args, **kwargs) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/utils/decorators.py in _wrapped_view
                      response = view_func(request, *args, **kwargs) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/utils/decorators.py in bound_func
                  return func.__get__(self, type(self))(*args2, **kwargs2) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/contrib/admin/options.py in changelist_view
                  self.list_max_show_all, self.list_editable, self, ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/contrib/admin/views/main.py in __init__
          self.get_results(request) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/contrib/admin/views/main.py in get_results
          result_count = paginator.count ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/utils/functional.py in __get__
          res = instance.__dict__[self.name] = self.func(instance) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/core/paginator.py in count
              return self.object_list.count() ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/models/query.py in count
          return self.query.get_count(using=self.db) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/models/sql/query.py in get_count
          number = obj.get_aggregation(using, ['__count'])['__count'] ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/models/sql/query.py in get_aggregation
          result = compiler.execute_sql(SINGLE) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/models/sql/compiler.py in execute_sql
              cursor.execute(sql, params) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/backends/utils.py in execute
              return super(CursorDebugWrapper, self).execute(sql, params) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/backends/utils.py in execute
                  return self.cursor.execute(sql, params) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/utils.py in __exit__
                  six.reraise(dj_exc_type, dj_exc_value, traceback) ...
  ▶ Local vars
  /home/yanayt/envs/py2.7/lib/python2.7/site-packages/django/db/backends/utils.py in execute
                  return self.cursor.execute(sql, params) ...
  ▶ Local vars
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  Settings
  Using settings module config.settings
  Setting Value
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   (u'fy', u'Frisian'),
   (u'ga', u'Irish'),
   (u'gd', u'Scottish Gaelic'),
   (u'gl', u'Galician'),
   (u'he', u'Hebrew'),
   (u'hi', u'Hindi'),
   (u'hr', u'Croatian'),
   (u'hsb', u'Upper Sorbian'),
   (u'hu', u'Hungarian'),
   (u'ia', u'Interlingua'),
   (u'id', u'Indonesian'),
   (u'io', u'Ido'),
   (u'is', u'Icelandic'),
   (u'it', u'Italian'),
   (u'ja', u'Japanese'),
   (u'ka', u'Georgian'),
   (u'kk', u'Kazakh'),
   (u'km', u'Khmer'),
   (u'kn', u'Kannada'),
   (u'ko', u'Korean'),
   (u'lb', u'Luxembourgish'),
   (u'lt', u'Lithuanian'),
   (u'lv', u'Latvian'),
   (u'mk', u'Macedonian'),
   (u'ml', u'Malayalam'),
   (u'mn', u'Mongolian'),
   (u'mr', u'Marathi'),
   (u'my', u'Burmese'),
   (u'nb', u'Norwegian Bokm\xe5l'),
   (u'ne', u'Nepali'),
   (u'nl', u'Dutch'),
   (u'nn', u'Norwegian Nynorsk'),
   (u'os', u'Ossetic'),
   (u'pa', u'Punjabi'),
   (u'pl', u'Polish'),
   (u'pt', u'Portuguese'),
   (u'pt-br', u'Brazilian Portuguese'),
   (u'ro', u'Romanian'),
   (u'ru', u'Russian'),
   (u'sk', u'Slovak'),
   (u'sl', u'Slovenian'),
   (u'sq', u'Albanian'),
   (u'sr', u'Serbian'),
   (u'sr-latn', u'Serbian Latin'),
   (u'sv', u'Swedish'),
   (u'sw', u'Swahili'),
   (u'ta', u'Tamil'),
   (u'te', u'Telugu'),
   (u'th', u'Thai'),
   (u'tr', u'Turkish'),
   (u'tt', u'Tatar'),
   (u'udm', u'Udmurt'),
   (u'uk', u'Ukrainian'),
   (u'ur', u'Urdu'),
   (u'vi', u'Vietnamese'),
   (u'zh-hans', u'Simplified Chinese'),
   (u'zh-hant', u'Traditional Chinese')]
  LANGUAGES_BIDI  
  [u'he', u'ar', u'fa', u'ur']
  LANGUAGE_CODE   
  'en-us'
  LANGUAGE_COOKIE_AGE 
  None
  LANGUAGE_COOKIE_DOMAIN  
  None
  LANGUAGE_COOKIE_NAME    
  u'django_language'
  LANGUAGE_COOKIE_PATH    
  u'/'
  LOCALE_PATHS    
  []
  LOGGING 
  {'disable_existing_loggers': False,
   'formatters': {'simple': {'datefmt': '%Y-%m-%d %H:%M:%S',
                             'format': '[%(levelname)-7s] %(asctime)s - %(message)s'},
                  'verbose': {'datefmt': '%Y-%m-%d %H:%M:%S',
                              'format': '%(asctime)s - %(levelname)s - %(process)d - %(thread)d - %(filename)s - %(message)s'}},
   'handlers': {'console': {'class': 'logging.StreamHandler',
                            'formatter': 'verbose',
                            'level': 'DEBUG'},
                'fat_app_logfile': {'backupCount': 8,
                                    'class': 'cloghandler.ConcurrentRotatingFileHandler',
                                    'filename': '/var/log/fat/fat-log.txt',
                                    'formatter': 'verbose',
                                    'level': 'DEBUG',
                                    'maxBytes': 1048576},
                'rq_app_logfile': {'backupCount': 8,
                                   'class': 'cloghandler.ConcurrentRotatingFileHandler',
                                   'filename': '/var/log/fat/fat-log.txt',
                                   'formatter': 'verbose',
                                   'level': 'DEBUG',
                                   'maxBytes': 1048576}},
   'loggers': {'MainLogger': {'handlers': ['console', 'fat_app_logfile'],
                              'level': 'DEBUG',
                              'propagate': True},
               'django_auth_ldap': {'handlers': ['console', 'fat_app_logfile'],
                                    'level': 'DEBUG',
                                    'propagate': True},
               'rq_scheduler': {'handlers': ['console', 'fat_app_logfile'],
                                'level': 'DEBUG',
                                'propagate': True}},
   'version': 1}
  LOGGING_CONFIG  
  u'logging.config.dictConfig'
  LOGIN_REDIRECT_URL  
  '/'
  LOGIN_URL   
  u'/accounts/login/'
  LOGOUT_REDIRECT_URL 
  None
  LOG_FILENAME    
  'fat-log.txt'
  LOG_FILES_ROTATE_NUM    
  8
  LOG_FILE_FULL_PATH  
  '/var/log/fat/fat-log.txt'
  LOG_FILE_MAX_SIZE_MB    
  1
  MANAGERS    
  []
  MEDIA_ROOT  
  u''
  MEDIA_URL   
  u''
  MESSAGE_STORAGE 
  u'django.contrib.messages.storage.fallback.FallbackStorage'
  MIDDLEWARE  
  ['django.middleware.security.SecurityMiddleware',
   'django.contrib.sessions.middleware.SessionMiddleware',
   'django.middleware.common.CommonMiddleware',
   'django.middleware.csrf.CsrfViewMiddleware',
   'django.contrib.auth.middleware.AuthenticationMiddleware',
   'django.contrib.messages.middleware.MessageMiddleware',
   'django.middleware.clickjacking.XFrameOptionsMiddleware',
   'config.nocache.NoCache']
  MIDDLEWARE_CLASSES  
  [u'django.middleware.common.CommonMiddleware',
   u'django.middleware.csrf.CsrfViewMiddleware']
  MIGRATION_MODULES   
  {}
  MONTH_DAY_FORMAT    
  u'F j'
  NUMBER_GROUPING 
  0
  PASSWORD_HASHERS    
  u'********************'
  PASSWORD_RESET_TIMEOUT_DAYS 
  u'********************'
  PREPEND_WWW 
  False
  PROJECT_PATH    
  '/home/yanayt/dev/fat/fatsite'
  ROOT_URLCONF    
  'config.urls'
  RQ_QUEUES   
  {'default': {'USE_REDIS_CACHE': 'default'},
   'scheduled_jobs': {'USE_REDIS_CACHE': 'default'}}
  SECRET_KEY  
  u'********************'
  SECURE_BROWSER_XSS_FILTER   
  False
  SECURE_CONTENT_TYPE_NOSNIFF 
  False
  SECURE_HSTS_INCLUDE_SUBDOMAINS  
  False
  SECURE_HSTS_SECONDS 
  0
  SECURE_PROXY_SSL_HEADER 
  None
  SECURE_REDIRECT_EXEMPT  
  []
  SECURE_SSL_HOST 
  None
  SECURE_SSL_REDIRECT 
  False
  SERVER_EMAIL    
  u'root@localhost'
  SESSION_CACHE_ALIAS 
  'default'
  SESSION_COOKIE_AGE  
  1209600
  SESSION_COOKIE_DOMAIN   
  None
  SESSION_COOKIE_HTTPONLY 
  True
  SESSION_COOKIE_NAME 
  u'sessionid'
  SESSION_COOKIE_PATH 
  u'/'
  SESSION_COOKIE_SECURE   
  False
  SESSION_ENGINE  
  'django.contrib.sessions.backends.cache'
  SESSION_EXPIRE_AT_BROWSER_CLOSE 
  False
  SESSION_FILE_PATH   
  None
  SESSION_SAVE_EVERY_REQUEST  
  False
  SESSION_SERIALIZER  
  u'django.contrib.sessions.serializers.JSONSerializer'
  SETTINGS_MODULE 
  'config.settings'
  SHORT_DATETIME_FORMAT   
  u'm/d/Y P'
  SHORT_DATE_FORMAT   
  u'm/d/Y'
  SIGNING_BACKEND 
  u'django.core.signing.TimestampSigner'
  SILENCED_SYSTEM_CHECKS  
  []
  SIMPLE_LINE_FORMAT  
  '[%(levelname)-7s] %(asctime)s - %(message)s'
  SITE_ROOT   
  '/home/yanayt/dev/fat/fatsite'
  STATICFILES_DIRS    
  ['/home/yanayt/dev/fat/fatsite/static']
  STATICFILES_FINDERS 
  [u'django.contrib.staticfiles.finders.FileSystemFinder',
   u'django.contrib.staticfiles.finders.AppDirectoriesFinder']
  STATICFILES_STORAGE 
  u'django.contrib.staticfiles.storage.StaticFilesStorage'
  STATIC_ROOT 
  '/var/www/static'
  STATIC_URL  
  '/static/'
  TEMPLATES   
  [{'APP_DIRS': True,
    'BACKEND': 'django.template.backends.django.DjangoTemplates',
    'DIRS': ['/home/yanayt/dev/fat/fatsite/templates',
             '/home/yanayt/dev/fat/fatsite/static'],
    'OPTIONS': {'context_processors': ['django.template.context_processors.debug',
                                       'django.template.context_processors.request',
                                       'django.contrib.auth.context_processors.auth',
                                       'django.contrib.messages.context_processors.messages']}}]
  TEST_NON_SERIALIZED_APPS    
  []
  TEST_RUNNER 
  u'django.test.runner.DiscoverRunner'
  THOUSAND_SEPARATOR  
  u','
  TIME_FORMAT 
  u'P'
  TIME_INPUT_FORMATS  
  [u'%H:%M:%S', u'%H:%M:%S.%f', u'%H:%M']
  TIME_ZONE   
  'UTC'
  USE_ETAGS   
  False
  USE_I18N    
  True
  USE_L10N    
  True
  USE_THOUSAND_SEPARATOR  
  False
  USE_TZ  
  True
  USE_X_FORWARDED_HOST    
  False
  USE_X_FORWARDED_PORT    
  False
  VERBOSE_LINE_FORMAT 
  '%(asctime)s - %(levelname)s - %(process)d - %(thread)d - %(filename)s - %(message)s'
  WSGI_APPLICATION    
  'config.wsgi.application'
  X_FRAME_OPTIONS 
  u'SAMEORIGIN'
  YEAR_MONTH_FORMAT   
  u'F Y'
  You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard page generated by the handler for this status code.
  </code></pre>
  
  <p>The new model is functional (we can drill into it in the admin", while the old one appears but we cannot drill into it.</p>
  
  <p>How is it possible to get rid of the old model display in the admin? Where does Django gets the information from if it doesn't appear in the code/DB.</p>
  
  <p>Thanks</p>