Fix for blanking passwords when editing auth model and leaving password blank
Fix for blanking passwords when editing auth model and leaving password blank

atk4/atk4,svisystem/atk4,samratcis/atk4,xepan/atk4,atk4/atk4,atk4/atk4,svisystem/atk4,xepan/atk4,xepan/atk4,atk4/atk4,samratcis/atk4,svisystem/atk4,samratcis/atk4