[BUG] OnCancel prop dosent work properly and its not mentioned in the documentation

[AyoubSayah]

We have an issue using wizard we wanted to override cancel button behavior, but when we set our implementation into the OnCancel() callback doesn't work even the event did not dispatch. The only workaround to override is to get the Form instance, then override his property function cancel() and I am not sure if it's gonna make problems later or not!. image