[1.7.x] Fixed #23956 -- Fixed migration creation for multiple table inheritance

Backport of 44927ba817a4ecf9834d429ff6c86bc5ac961305 from master

1 files changed, 1 insertions, 1 deletions

diff --git a/django/db/migrations/autodetector.py b/django/db/migrations/autodetector.py
index d5286c7351..23ab3797e4 100644
--- a/django/db/migrations/autodetector.py
+++ b/django/db/migrations/autodetector.py
@@ -471,7 +471,7 @@ class MigrationAutodetector(object):
                     if field.rel.to:
                         if field.primary_key:
                             primary_key_rel = field.rel.to
-                        else:
+                        elif not field.rel.parent_link:
                             related_fields[field.name] = field
                     # through will be none on M2Ms on swapped-out models;
                     # we can treat lack of through as auto_created=True, though.