EventUtil::registerPersistentModuleHandler()

[cmfcmf]

If I call it twice with the same arguments (for example if installation of a module fails after the handler registration for some other reaseon [see #484 too]), for example:

 EventUtil::registerPersistentModuleHandler('Newsletter', 'frontcontroller.predispatch', array('Newsletter_Listener_AutoSend', 'pageLoadListener'));

It is written two times in database. So the Listener pageLoadListener is always called twice.
Couldn't the second call simply be ignored?

I cannnot imagine a case, where calling the handler always twice is wanted.

[phaidon]

👍

[ghost]

Sure, it could be a bit more robust for sure.