From eaf9764d3bb25970da89de5799d8d308715628ba Mon Sep 17 00:00:00 2001
From: Mariusz Felisiak <felisiak.mariusz@gmail.com>
Date: Tue, 15 Sep 2020 11:40:59 +0200
Subject: Fixed #32007 -- Fixed queryset crash with Q() annotation and
 aggregation.

Thanks Gordon Wrigley for the report.

Regression in 8a6df55f2dd5131282084a4edfd48f63fbf8c69a.
---
 django/db/models/sql/where.py | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'django/db/models/sql/where.py')

diff --git a/django/db/models/sql/where.py b/django/db/models/sql/where.py
index bf0828dc8b..795eff8395 100644
--- a/django/db/models/sql/where.py
+++ b/django/db/models/sql/where.py
@@ -159,6 +159,9 @@ class WhereNode(tree.Node):
         clone.relabel_aliases(change_map)
         return clone
 
+    def copy(self):
+        return self.clone()
+
     @classmethod
     def _contains_aggregate(cls, obj):
         if isinstance(obj, tree.Node):
-- 
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