QT Message Dialogs not spoken by orca when they pop up

[chrys at linux-a11y.org]

Howdy Joanie,

I recognized that some (maybeall?) dialogs like confirmation or  
message dialogs are not spoken when they pop up. just the currently  
focused button is spoken if they pop up. if i remember correctly on  
GTK it speaks all the text what is in the message window bevore read  
the current focused button.
i recognized this in mumble while getting the "accept server key"  
dialog. but as i remeber right i did see this on other dialogs too.

could you take a look if you can reproduce this or what is needed to  
get the dialog spoken on pop up?

cheers chrys