Description of problem:
Killed while adding attachments.

Version-Release number of selected component:
evolution-3.8.3-2.fc19

Additional info:
reporter:       libreport-2.1.5
backtrace_rating: 4
cmdline:        evolution
crash_function: g_type_check_instance_is_a
executable:     /usr/bin/evolution
kernel:         3.10.0-0.rc6.git0.1.fc20.x86_64
runlevel:       N 5
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 g_type_check_instance_is_a at gtype.c:3999
 #1 g_file_info_get_icon at gfileinfo.c:1662
 #2 e_attachment_set_file_info at e-attachment.c:1382
 #3 e_attachment_load_finish at e-attachment.c:2223
 #4 e_attachment_load_handle_error at e-attachment.c:2252
 #5 g_simple_async_result_complete at gsimpleasyncresult.c:777
 #6 attachment_load_finish at e-attachment.c:1854
 #7 attachment_load_stream_read_cb at e-attachment.c:1928
 #8 async_ready_callback_wrapper at ginputstream.c:530
 #9 g_task_return_now at gtask.c:1105