Fixing an inconsistency in vertical index search between JIT and Scipy #482

Job	Run time
mypy	3m 49s
py3.13 \| macos \| integration tests	16m 13s
py3.13 \| macos \| unit tests	11m 11s
py3.13 \| ubuntu \| integration tests	17m 31s
py3.13 \| ubuntu \| unit tests	13m 42s
py3.13 \| windows \| integration tests	30m 26s
py3.13 \| windows \| unit tests	21m 15s
py3.10 \| ubuntu \| integration tests	18m 57s
py3.10 \| ubuntu \| unit tests	13m 8s
py3.11 \| ubuntu \| unit tests	12m 59s
py3.12 \| ubuntu \| unit tests	14m 5s
merge-test-artifacts	2s
	2h 53m 18s

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