Pull request #1758: PIPE-2320: hifa_flagdata heuristic for determining FDM spws should use msmd.almaspws
Merge in PIPE/pipeline from PIPE-2320-hifa_flagdata-heuristic-for-determining-fdm-spws-should-use-msmd.almaspws to main
* commit '84bbb0b3dd7e0e677537ac0c9a99f796ff390cc4': PIPE-2320: removed unused import and added _fdm_spws default to class definition PIPE-2320: added unit tests to exercise heuristics change PIPE-2320: use CASA metadata for ALMA FDM detection