g_object_unref on non-objects

[IBBoard]

Something somewhere is doing a g_object_unref on something that isn't a gobject.

(cawbird:14911): GLib-GObject-CRITICAL **: 13:24:15.291: g_object_unref: assertion 'G_IS_OBJECT (object)' failed

This may be related to clearing tweet-related items from the cache, as it seems to happen most around "Removing avatar" debug messages, but that could be a red herring.

(cawbird:15146): GLib-GObject-CRITICAL **: 13:31:54.966: g_object_unref: assertion 'G_IS_OBJECT (object)' failed

(cawbird:15146): GLib-GObject-CRITICAL **: 13:31:54.966: g_object_unref: assertion 'G_IS_OBJECT (object)' failed

(cawbird:15146): GLib-GObject-CRITICAL **: 13:31:54.971: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
(cawbird:15146): cawbird-DEBUG: 13:31:54.975: Removing avatar with id 86626845 from cache
(cawbird:15146): cawbird-DEBUG: 13:31:54.975: Removing avatar with id 1023072078 from cache

[IBBoard]

Going to close this for now. I've not seen any go past in a while, and I never found what caused it so I can't do anything to trigger them.