Regression test for v4 interpolation #579

Job	Run time
mypy	3m 19s
py3.13 \| macos \| integration tests	19m 12s
py3.13 \| macos \| unit tests	10m 29s
py3.13 \| ubuntu \| integration tests	26m 50s
py3.13 \| ubuntu \| unit tests	10m 21s
py3.13 \| windows \| integration tests	6m 43s
py3.13 \| windows \| unit tests	4m 37s
py3.10 \| ubuntu \| integration tests	15m 5s
py3.10 \| ubuntu \| unit tests	11m 1s
py3.11 \| ubuntu \| unit tests	10m 29s
py3.12 \| ubuntu \| unit tests	10m 42s
merge-test-artifacts	0s
	2h 8m 48s

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