Comment 2 for bug 1147349

StacktraceTop:
 thunar_file_is_directory (file=file@entry=0x0) at thunar-file.c:2533
 thunar_list_model_cmp_func (a=0x7f4cd803fba0, b=0x0, user_data=<optimized out>) at thunar-list-model.c:1016
 node_find_closest (haystack=0x7f4cf00d1400, needle=0x7f4cf00d1090, end=0x7f4d0cd5f750, iter_cmp=0x7f4d07aac700 <iter_compare>, cmp_data=0x7fffaf71b080) at /build/buildd/glib2.0-2.35.8/./glib/gsequence.c:1766
 node_insert_sorted (node=<optimized out>, new=0x7f4cf00d1090, end=<optimized out>, iter_cmp=iter_cmp@entry=0x7f4d07aac700 <iter_compare>, cmp_data=cmp_data@entry=0x7fffaf71b080) at /build/buildd/glib2.0-2.35.8/./glib/gsequence.c:2004
 g_sequence_insert_sorted_iter (seq=seq@entry=0x7f4d0cabed70, data=data@entry=0x0, iter_cmp=iter_cmp@entry=0x7f4d07aac700 <iter_compare>, cmp_data=cmp_data@entry=0x7fffaf71b080) at /build/buildd/glib2.0-2.35.8/./glib/gsequence.c:1029