#36442: Reusing same instance of FilteredRelations in multiple queries result in
django.core.exceptions.FieldError: Cannot resolve keyword
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Reporter: Viliam Mihálik | Owner: (none)
Type: Bug | Status: new
Component: Database layer | Version: 5.0
(models, ORM) |
Severity: Normal | Resolution:
Keywords: FilteredRelation, | Triage Stage: Accepted
ORM |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Viliam Mihálik):
I can look at it.
I checked the code, and after debug, .clone method is never called. So my
suggestion is to clone annotation before "rename" here
https://github.com/django/django/blob/main/django/db/models/query.py#L1728
and simply change `clone.query.add_filtered_relation(annotation, alias)`
to `clone.query.add_filtered_relation(annotation.clone(), alias)`
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Ticket URL: <https://code.djangoproject.com/ticket/36442#comment:2>
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