Fixed bug in the Class Setup page where the user could press the update button before the page finished loading which resulted in classes being deleted.
Fixed bug in the Class Setup page where the user could press the update button before the page finished loading which resulted in classes being deleted.

sktoo/timetabling-system-,sktoo/timetabling-system-,sktoo/timetabling-system-,UniTime/unitime,zuzanamullerova/unitime,maciej-zygmunt/unitime,nikeshmhr/unitime,nikeshmhr/unitime,rafati/unitime,rafati/unitime,UniTime/unitime,zuzanamullerova/unitime,zuzanamullerova/unitime,maciej-zygmunt/unitime,maciej-zygmunt/unitime,UniTime/unitime,nikeshmhr/unitime,rafati/unitime