Improve protection for cells container in TrigTowerMaker and avoid double container CaloCells in HI menu
improve protection for cells container retrieval in TrigTowerMaker and avoid double CaloCells container in HI menu. Related to ATR-30469 No change in counts from what I could check (all ART tests plus test_trigP1_v1Dev_HI_run3_build.py).. Hope the title is good.... Denis