Sweeping !21053 from 21.3 to 21.9. Sweeping !20990 from master to 21.3.Use Default List for the ART Grid Inputs in MuonRecRTT
Sweeping !20990 (merged) from master to 21.3. Use Default List for the ART Grid Inputs in MuonRecRTT
See merge request !21053 (merged)