Glib threading init problem in gome-sound-properties

When starting gnome-sound-properties from the command line, one can see that gstreamer is complaining about the lack of a g_thread_init() call before calling into gstreamer. I've verified that adding the suggested line satisfies gstreamer.

Could this be related to the intermittent crashes on clicking the test button, which some people have been seeing?

GStreamer-WARNING **: The GStreamer function gst_init_get_option_group() was
        called, but the GLib threading system has not been initialised
        yet, something that must happen before any other GLib function
        is called. The application needs to be fixed so that it calls
           if (!g_thread_supported ()) g_thread_init(NULL);
        as very first thing in its main() function. Please file a bug
        against this application.