T5 : Event bubbling

[Stephane Decleire]

Hi,

I have several components encompassed in each other : say A encompasses 
B which encompasses C.
When someone trigger an eventlink in C, i try to catch the event in B in 
a handler like this one :

   @OnEvent (value="action")
   Object change() {
       // ... management of the action ...
       return null;
   }

I need to return null to show the same page to the user but returning 
null seems to imply that my handler does not catch the event and it 
bubbles to the following handler in A :

   @OnEvent (value="action")
   Object manage() {
       // ... management of the action ...
   }

Is it the correct behavior of event bubbling in T5 (i mean handlers 
which returns null values do not catch the event) ?
If yes, what is the solution for an handler to both catch the event and 
show the same page to the user ?

Thanks in advance

Stephane