Paint2D is not being reRendered when nested in a tabPanel

[shandor]

I have a tab panel with switchType="ajax"
When clicking different tabs the paint2d object is being reRendered
as expected ( image changes as the inputs change).
...BUT when having an ajax component on the same tab as the paint2d component, on ajax request all components on the tab are being reRendered except the paint2d object.
So the image stays the same.

I ran it through a debugger and the point method is not being called
on ajax request.

[shandor]

I forgot to mention that the reRender proerty of the ajaxSupport is set to the whole tab Panel.