T5 : page updated instead of zone on form submit

[Stephane Decleire]

Hi,

When i try to update a zone in a form handler, i get the following 
warning and the entire page is reloaded :

[WARN] ComponentInstanceResultProcessor Component 
Test:accountmanagement.myaccountzone was returned from an event handler 
method, but is not a page component. The page containing the component 
will render the client response.

Any idea ?

Stephane