Bug#836775: twinkle hangs when it receives REFER and pops up transfer window

[Juha Heinanen]

Package: twinkle
Version: 1:1.10.0+dfsg-1~bpo8+1

Thanks for backporting twinkle to jessie.  I gave it a try. When twinkle
receives REFER it pops up a window asking (Yes/No) permission for the call
transfer.  Unfortunately at that point twinkle hangs and Yes/No buttons
are not responsive.  At that point, twinkle reports to console:

QObject::setParent: Cannot set parent, new parent is in a different thread
QLayout: Attempting to add QLayout "" to YesNoDialog "", which already has a layout
QObject::connect: Cannot queue arguments of type 'QTextBlock'
(Make sure 'QTextBlock' is registered using qRegisterMetaType().)

Regards,

-- Juha