Fixing bug in backward-in-time-writing #176

Job	Run time
mypy	3m 45s
py3.12 \| macos \| integration tests	22m 36s
py3.12 \| macos \| unit tests	9m 15s
py3.12 \| ubuntu \| integration tests	18m 28s
py3.12 \| ubuntu \| unit tests	13m 24s
py3.12 \| windows \| integration tests	49m 6s
py3.12 \| windows \| unit tests	19m 42s
py3.10 \| ubuntu \| unit tests	12m 14s
py3.11 \| ubuntu \| unit tests	12m 10s
merge-test-artifacts	2s
	2h 40m 42s

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