CUSTOM events are not produced when filter is set

[gmarsico]

Hi, I trying to set the event-filter to get only custom events, like vm::maintenance or other. If no filter are applied, custom events are normally produced, but if the filter is set to CUSTOM, or the sub-paths combinations of CUSTOM, like CUSTOM::vm::maintenance, no events are produced.
It is easly reproduced setting this line on the config file:
<param name="event-filter" value="CUSTOM"/>

Thanks

[gmarsico]

More strangely, if the event-filter is set to:
<param name="event-filter" value="MESSAGE_WAITING,HEARTBEAT,MESSAGE-WAITING"/>
The CUSTOM events start to appear. Note the invalid MESSAGE-WAITING.

[kingster]

I don't think CUSTOM is a valid event name. Based on the freeswitch documentation the closed match that I can see is SWITCH_EVENT_CUSTOM.