Comment 2 for bug 1100937

StacktraceTop:
 g_data_set_internal (dataset=0x0, new_destroy_func=0x0, new_data=0x0, key_id=56, datalist=0x7fed4fc75680) at /build/buildd/glib2.0-2.35.4/./glib/gdataset.c:367
 g_datalist_id_set_data_full (datalist=datalist@entry=0x7fed4fc75680, key_id=56, data=data@entry=0x0, destroy_func=destroy_func@entry=0x0) at /build/buildd/glib2.0-2.35.4/./glib/gdataset.c:674
 g_object_real_dispose (object=0x7fed4fc75670) at /build/buildd/glib2.0-2.35.4/./gobject/gobject.c:1012
 g_object_unref (_object=0x7fed4fc75670) at /build/buildd/glib2.0-2.35.4/./gobject/gobject.c:2987
 load_chapters_from_file (uri=0x7fed50df5a90 "file:///home/doug/Music/01%20-%20The%20Thrill%20Is%20Gone.cmml", from_dialog=0, plugin=0x7fed50170dd0) at totem-chapters.c:616