appFavorites: Only emit :changed signal on changes
We were emitting the :changed signal on every setting or app-filter
change even though the actual favorites list might not have changed.
So now every time it's relevant, check if something is changed before
emitting the :changed signal.
We do a deep check of the app IDs as potentially an app could have
been removed while another is being installed during the same update
window, and the length of the IDs list wouldn't change.
projects / gnome-shell.git / commit