dq_input_transform_lookup: fix indexes for left-side lookup key #16656

Job	Run time
check-running-allowed	11s
Build and test relwithdebinfo	1h 18m 51s
Build and test release-asan	2h 25m 32s
Build and test release-clang14	9m 49s
update_integrated_status	2s
	3h 54m 25s

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