dbd04df311
meta_window_foreach_transient() iterates through all transients of a window, not only direct transients. This means that simply checking if a transient is an attached dialog isn't enough because it might be a non-direct transient for the window we're checking, in which case we don't want to dim the window. In particular this fixes windows not getting undimmed when they have more that one level of transient children and the direct transient gets destroyed. In that case we would still find at least one non-direct transient child and decide to keep the window dimmed. https://bugzilla.gnome.org/show_bug.cgi?id=770163
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