BugFix with ClickHold on QuitMission btn
BugFix with ClickHold on QuitMission btn

we can't be sure btn still exists, when ResetClickHoldMode method is invoked
reyandme/kam_remake,Alexandr57/kam_remake,thibmo/kam_remake,Alexandr57/kam_remake,thibmo/kam_remake,thibmo/kam_remake,reyandme/kam_remake,Alexandr57/kam_remake,Alexandr57/kam_remake,thibmo/kam_remake,reyandme/kam_remake,reyandme/kam_remake,reyandme/kam_remake,Alexandr57/kam_remake,thibmo/kam_remake,Alexandr57/kam_remake