Pull request #1094: CAS-14767
Merge in CASA/casa6 from CAS-14767 to master
* commit 'ed79b524ae6a5fa53b44529b1a91d7679361e9ff': CAS-14767: Revert radial velocity change from CAS-7382 also for SubMS.cc CAS-14767: Revert radial velocity change from CAS-7382, which produces wrong RV corrections if the target RV changes significantly during the observation.