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William Jon McCann authored
An event filter may add or remove filters itself. This patch does two things to address this case. The first is to take a temporary reference to the filter while it is being used. The second is to wait until after the filter function is run before determining the next node in the list to process. This guards against changes to the next node. It also does not run functions that have been marked as removed. Though I'm not sure if this case can arise. https://bugzilla.gnome.org/show_bug.cgi?id=635380
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