#35301: Overriding a @property of an abstract model with a GenericRelation 
causes a
models.E025 error.
-------------------------------------+-------------------------------------
     Reporter:  Sage Abdullah        |                    Owner:  nobody
         Type:  Bug                  |                   Status:  new
    Component:  Database layer       |                  Version:  dev
  (models, ORM)                      |
     Severity:  Release blocker      |               Resolution:
     Keywords:                       |             Triage Stage:  Accepted
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------
Comment (by Sage Abdullah):

 Thanks both! Here's a much more minimal reproduction that still somewhat
 makes sense.

 {{{
 from django.contrib.contenttypes.fields import GenericForeignKey,
 GenericRelation
 from django.contrib.contenttypes.models import ContentType
 from django.db import models


 class Generic(models.Model):
     content_type = models.ForeignKey(
         ContentType,
         related_name="+",
         on_delete=models.CASCADE,
     )
     object_id = models.CharField(max_length=255)
     content_object = GenericForeignKey()


 class Abstract(models.Model):
     @property
     def generics(self):
         return Generic.objects.filter(
             content_type=ContentType.objects.get_for_model(self),
             object_id=str(self.pk),
         )

     class Meta:
         abstract = True


 class Concrete(Abstract):
     generics = GenericRelation(Generic, related_query_name="concrete")
 }}}
-- 
Ticket URL: <https://code.djangoproject.com/ticket/35301#comment:4>
Django <https://code.djangoproject.com/>
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