Why "onBeforeSave" is called before page rendering?

Support
#1

I have put

 @Subscribe
    public void onBeforeSave(BeforeSaveEvent event) {

In my flow ui app. But I have seen it is called before page rendering and not when I click on ok button to save.

Can someone explain this behaviour?
Thanks,
Mario

#2

Hi,

Unfortunately, I can’t reproduce this behaviour on a demo project. Do you have custom code in the view controller that invokes saving? The only place that fires BeforeSaveEvent is StandardDetailView#saveChanges.

Regards,
Gleb