title: django migrations making no changes to my admin site after altering my model.py
body: <pre><code>from django.db import models
  from django.contrib.auth.models import User
  
  class Post(models.Model):
      title = models.CharField(max_length=255)
      title_tag = models.CharField(max_length=255, default='awesome')
      author = models.ForeignKey(User, on_delete=models.CASCADE)
      body = models.TextField()
  
      def __str__(self):
          return self.title + ' | ' + str(self.author)
  </code></pre>
  <p>i add this field</p>
  <pre><code>title_tag = models.CharField(max_length=255, default='awesome')
  </code></pre>
  <p>after having my app installed in my settings.py and makingmigrations i still have no changes in my site admin
  i tried deleting the db.sqlite3 and deleting my initial migrations but not change still.</p>
  <pre><code>blog\migrations\0002_alter_post_title_tag.py
      - Alter field title_tag on post
  </code></pre>