[1.7.x] Fixed #24352 -- Fixed crash when coercing ``ManyRelatedManager`` to a string.

1 files changed, 3 insertions, 0 deletions

diff --git a/django/db/models/fields/related.py b/django/db/models/fields/related.py
index 344b238de8..c4cf4b79e5 100644
--- a/django/db/models/fields/related.py
+++ b/django/db/models/fields/related.py
@@ -855,6 +855,9 @@ def create_many_related_manager(superclass, rel):
             )
         do_not_call_in_templates = True
 
+        def __str__(self):
+            return repr(self)
+
         def _build_remove_filters(self, removed_vals):
             filters = Q(**{self.source_field_name: self.related_val})
             # No need to add a subquery condition if removed_vals is a QuerySet without