CR: prefer None over 0.0 in case of default #2852

Job	Run time
Cache identify	6s
Dependency	5s
Shellcheck	4s
Prepare	1m 44s
Ruff check and force	11s
Check commit	30s
Run pytest using Python 3.13	1m 41s
Process test coverage	21s
Run mypy	0s
Process test complexity	12s
Build and publish Python 🐍 distributions 📦 to TestPyPI	12s
	5m 6s

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