From a95616944b9cb58c2547d1f08590b3ad3a142fe2 Mon Sep 17 00:00:00 2001
From: Tim Graham <timograham@gmail.com>
Date: Wed, 15 Mar 2017 12:54:26 -0400
Subject: [1.11.x] Refs #27563 -- Fixed ModelChoiceField.__deepcopy__() so
 forms don't share a queryset cache.

Thanks Luke Benstead for the report Simon Charettes for the fix.

Backport of 44f9241c48e28823b140bc4ec7515f5a88b88c32 from master
---
 django/forms/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'django/forms')

diff --git a/django/forms/models.py b/django/forms/models.py
index a0f3ff53b3..de0ab6c28d 100644
--- a/django/forms/models.py
+++ b/django/forms/models.py
@@ -1165,7 +1165,7 @@ class ModelChoiceField(ChoiceField):
     def __deepcopy__(self, memo):
         result = super(ChoiceField, self).__deepcopy__(memo)
         # Need to force a new ModelChoiceIterator to be created, bug #11183
-        result.queryset = result.queryset
+        result.queryset = self.queryset.all()
         return result
 
     def _get_queryset(self):
-- 
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