Make automatic joining work #1411

Job	Run time
Prepare	53s
Shellcheck	7s
Dependency	6s
Ruff check and force	9s
Check commit	40s
Create pytest cache for Python 3.13	10s
Run pytest using Python 3.13	21s
Run mypy	8s
Process test coverage	10s
Process test complexity	6s
Build and publish Python 🐍 distributions 📦 to TestPyPI	38s
	3m 28s

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