title: what is the diff between save_model and save_formset in django admin
body: <p>I am reading the <code>save_model</code> and <code>save_formset</code> in django admin from here</p>
  
  <p><a href="https://docs.djangoproject.com/en/1.5/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_model" rel="noreferrer">https://docs.djangoproject.com/en/1.5/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_model</a></p>
  
  <p>But I am confused as to when <code>save_formset</code> is called.</p>
  
  <p>Shouldn't the formset be saved during <code>save_model</code>?</p>