Comment 2 for bug 1406978

StacktraceTop:
 gth_file_data_set_info (self=0x0, info=0x7fc8ac04ed50) at gth-file-data.c:180
 requested_folder_attributes_ready_cb (file_source=<optimized out>, error=<optimized out>, user_data=0x7fc8bfc4ee10) at gth-browser.c:1587
 read_metadata_info_ready_cb (files=<optimized out>, error=<optimized out>, user_data=0x7fc8bfcd4e30) at gth-file-source.c:719
 qam_metadata_ready_cb (source_object=<optimized out>, result=<optimized out>, user_data=0x7fc8bfe1df00) at gth-metadata-provider.c:422
 g_simple_async_result_complete (simple=0x7fc8bfd1d570) at /build/buildd/glib2.0-2.42.1/./gio/gsimpleasyncresult.c:763