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django__django-16408

Based on the issue description and the hints provided, I can understand the problem and generate the appropriate patch. The issue is that when using multi-level FilteredRelation with select_related(), the local_setter is incorrectly…

  • Skills
  • AI research
  • 2

What it does and how to use it

A skill that teaches Claude Code to do ai research tasks well. It is packaged knowledge the model uses whenever it is relevant.

  1. Install the skill (command above).
  2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
  3. No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/django-django-16408 && curl -fsSL https://doutorai.pt/data/lib/skills__django-django-16408.md -o .claude/skills/django-django-16408/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

Based on the issue description and the hints provided, I can understand the problem and generate the appropriate patch. The issue is that when using multi-level FilteredRelation with select_related(), the local_setter is incorrectly setting the related object on the wrong model because the intermediate object in the join chain is not being fetched.

The hint clearly shows the fix: when `len(joins) > 2`, the `local_setter` should be a no-op function because there's no intermediate object to set the relation on.

Here's the patch based on the provided hints:

--- a/django/db/models/sql/compiler.

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