django__django-13158
Based on the exploration and the previous patch attempt I found, I understand the issue. The problem is in Django's QuerySet.none() method - when called on a combined query (union/intersection/difference), the set_empty() method doesn't…
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Content
Based on the exploration and the previous patch attempt I found, I understand the issue. The problem is in Django's `QuerySet.none()` method - when called on a combined query (union/intersection/difference), the `set_empty()` method doesn't properly handle the case where `query.combinator` is set because the combined queries still exist.
The fix needs to clear the `combined_queries` and `combinator` attributes before calling `set_empty()`. Here's the correct patch:
--- a/django/db/models/query.py
+++ b/django/db/models/query.py
@@ -917,6 +917,8 @@ class QuerySet:
def none(self):
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