Comment 2 for bug 914393

StacktraceTop:
 _gtk_icon_helper_get_storage_type (self=0x0) at /build/buildd/gtk+3.0-3.3.6/./gtk/gtkiconhelper.c:482
 gtk_image_reset (image=0x2c6b2b0) at /build/buildd/gtk+3.0-3.3.6/./gtk/gtkimage.c:1336
 gtk_image_clear (image=0x2c6b2b0) at /build/buildd/gtk+3.0-3.3.6/./gtk/gtkimage.c:1392
 gtk_image_set_from_pixbuf (image=0x2c6b2b0, pixbuf=0x3d911e0) at /build/buildd/gtk+3.0-3.3.6/./gtk/gtkimage.c:764
 ffi_call_unix64 () at ../src/x86/unix64.S:75