Comment 2 for bug 897647

StacktraceTop:
 g_object_ref (_object=0x7f957745a649) at /build/buildd/glib2.0-2.30.0/./gobject/gobject.c:2648
 brasero_drive_selection_set_current_drive (self=0x32629d0, iter=0x7fff2b60ce40) at brasero-drive-selection.c:119
 brasero_drive_selection_drive_added_cb (monitor=<optimized out>, drive=0x2c41960, self=0x32629d0) at brasero-drive-selection.c:445
 g_closure_invoke (closure=0x30cb0a0, return_value=0x0, n_param_values=2, param_values=0x336a830, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.30.0/./gobject/gclosure.c:774
 signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=0x2817b80, emission_return=0x0, instance_and_params=0x336a830) at /build/buildd/glib2.0-2.30.0/./gobject/gsignal.c:3272