[1.5.x] Avoided a possible regression in 5097d3c5.

QuerySet.none() returns an instance of EmptyQuerySet, which may have
undesirable side effects in the presence of custom query set classes.

The implementation of .none() was refactored in master to have the same
effect as .filter(pk__in=[]).

Refs #19652.

Thanks Simon Charrette for the report.

1 files changed, 1 insertions, 1 deletions

diff --git a/django/forms/models.py b/django/forms/models.py
index 1b6821cd5b..1e7888ad8e 100644
--- a/django/forms/models.py
+++ b/django/forms/models.py
@@ -715,7 +715,7 @@ class BaseInlineFormSet(BaseModelFormSet):
         if self.instance.pk:
             qs = queryset.filter(**{self.fk.name: self.instance})
         else:
-            qs = queryset.none()
+            qs = queryset.filter(pk__in=[])
         super(BaseInlineFormSet, self).__init__(data, files, prefix=prefix,
                                                 queryset=qs, **kwargs)