[FIX] properly handle bids filter with bidspm copy (#1275) #980

Job	Run time
tests (system, moae, ubuntu-latest, R2023b)	25m 36s
tests (system, moae, macos-13, R2023b)	39m 20s
tests (system, facerep, ubuntu-latest, R2023b)	41m 42s
tests (system, facerep, macos-13, R2023b)	50m 17s
tests (system, fmriprep, ubuntu-latest, R2023b)	7m 11s
tests (system, fmriprep, macos-13, R2023b)	11m 52s
tests (system, ubuntu-latest, R2023b, bms)	18m 43s
tests (unit, ubuntu-latest, R2023b, fast)	10m 36s
tests (unit, macos-13, R2023b, fast)	13m 57s
tests (unit, ubuntu-latest, R2023b, slow)	13m 26s
tests (unit, macos-13, R2023b, slow)	29m 48s
tests (unit, macos-13, R2023b, fast)	12m 54s
	4h 35m 22s

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