Fixed #29653 -- Fixed missing related_query_name reverse accessor if GenericRelation is declared on an abstract base model.

Regression in 4ab027b94409e6415b774797bf9d3593da9d9ea8.

Thanks Lauri Kainulainen for the report.

1 files changed, 2 insertions, 1 deletions

diff --git a/django/db/models/base.py b/django/db/models/base.py
index d92fcb893a..3c2147ba78 100644
--- a/django/db/models/base.py
+++ b/django/db/models/base.py
@@ -280,7 +280,8 @@ class ModelBase(type):
                         )
                 else:
                     field = copy.deepcopy(field)
-                    field.mti_inherited = True
+                    if not base._meta.abstract:
+                        field.mti_inherited = True
                     new_class.add_to_class(field.name, field)
 
         # Copy indexes so that index names are unique when models extend an