Make automatic joining work #1419

Job	Run time
Dependency	4s
Shellcheck	5s
Prepare	49s
Ruff check and force	5s
Check commit	48s
Create pytest cache for Python 3.13	11s
Run pytest using Python 3.13	25s
Run mypy	6s
Process test coverage	11s
Process test complexity	7s
Build and publish Python 🐍 distributions 📦 to TestPyPI	24s
	3m 15s

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