Login as different user for a second time via Groups interface doesn't refresh the "You were originally logged as·..." but it does keep the last session user right:
Logged as A1, click in A2
Logged as A2 (label says originally logged as A1), click in A3
Logged as A3 (label says originally logged as A1), click in label originally logged as A1
Login as different user for a second time via Groups interface doesn't refresh the "You were originally logged as·..." but it does keep the last session user right: