addFormHandler

System

Based on the documentation:

IWEventRegistry.addFormHandler (eventname func)
Specify an event handler for a form event, replacing any previously registered function (for this event).
Arguments:
eventname
A string representing the name of the event this handler will intercept (see table above).
func
A function that is the event handler for this event.
Returns:
Nothing.

Shouldn't this function be called setFormHandler instead of addFormHandler?

The reason this comes up is that I have an inline that adds certain fields to all templates and sets a form handler for those fields. In the template that calls the inline I want to have some script that adds to the logic in that inline's form handler. I know I could override the form handler defined in the inline by having the handler in the template call the handler in the inline, but then if I change the inline I have to change all the templates that use it. And since I don't develop all templates I couldn't be sure others would not override the validation.

Does anyone have a workaround for this?