Merge pull request #2315 from bendavis78/issues/22073

Fixed #22073 - Ensure CreateTable operation handles backwards migration correctly when M2M fields are present

1 files changed, 5 insertions, 0 deletions

diff --git a/django/db/backends/schema.py b/django/db/backends/schema.py
index afc60c30b1..862b22f901 100644
--- a/django/db/backends/schema.py
+++ b/django/db/backends/schema.py
@@ -268,6 +268,11 @@ class BaseDatabaseSchemaEditor(object):
         """
         Deletes a model from the database.
         """
+        # Handle auto-created intermediary models
+        for field in model._meta.local_many_to_many:
+            if field.rel.through._meta.auto_created:
+                self.delete_model(field.rel.through)
+
         # Delete the table
         self.execute(self.sql_delete_table % {
             "table": self.quote_name(model._meta.db_table),