Comment 2 for bug 816740

StacktraceTop:
 g_type_name (type=<value optimized out>) at /build/buildd/glib2.0-2.29.14/./gobject/gtype.c:3287
 g_typelib_get_dir_entry_by_gtype (typelib=0x7f646f191f20, fastpass=1, gtype=<value optimized out>) at girepository/gitypelib.c:206
 find_by_gtype_foreach (key=<value optimized out>, value=0x7f646f191f20, datap=0x7fff8027a410) at girepository/girepository.c:576
 find_by_gtype_foreach (key=<value optimized out>, value=0x7f646f191f20, datap=0x7fff8027a410) at girepository/girepository.c:566
 g_hash_table_foreach (hash_table=0x7f646f1f6c00, func=0x7f646ab1f1d0 <find_by_gtype_foreach>, user_data=0x7fff8027a410) at /build/buildd/glib2.0-2.29.14/./glib/ghash.c:1420