This may have been exacerbated by Will's optimizations in 0.7.34 (I never saw it before that version, at least). It can be exhibited by dispatcher/dispatch-rejected-by-plugin.py in telepathy-mission-control, at least for now. This branch fixes the crash, and improves the docs for tp_proxy_signal_connection_disconnect to explain why it happened. http://git.collabora.co.uk/?p=user/smcv/telepathy-glib-smcv.git;a=shortlog;h=refs/heads/proxy-crash
Fixed in 0.7.36
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