[Trinidad] tr:panelPopup and PPR

[Renzo Tomaselli]

Hi, can anybody suggest a way to PPR a modal tr:panelPopup ? There is no 
reason to render the entire page, since it's already there and the popup 
just overwrites it.
I tried to catch the popup component through binding, then I used 
RequestContext.getCurrentInstance().addPartialTarget(component).
Candidate buttons on the page have partialSubmit="true", but nothing 
appears, although a PPR cycle is fired and the above call is performed.
Indeed response XDR contains some error message - without any explicit 
text - but the popup code is entirely missing.
The overall thing works fine if the entire page is rendered.