engine()->rootContext() will give a different result to
rootContext() when using a shared engine.
One being in the right context, the other being the context of the
shared engine. Using the latter means two panels end up sharing the same
object which leads to some interesting results and QML crashes in
QV4::QObjectWrapper::wrap when one gets deleted.
I've tested against 356545, but I think it's the cause of a lot of the
mystery QML bugs we couldn't figure out.
BUG: 356545
BUG: 355885
BUG: 356916
REVIEW: 126491
when a wallpaper different from the current gets configured,
it has an own configuration object.
when the final wallpaper gets applied and the current changes, copy the config we did beforehand
to the now final real wallpaper config
BUG:338065
David Edmundson
Montel Laurent
Marco Martin
Aaron Seigo
Aleix Pol