The fallback copy code was leaking the GFileInfo if it didn't have
G_FILE_ATTRIBUTE_STANDARD_TYPE.
https://bugzilla.gnome.org/show_bug.cgi?id=682560
/* Error getting info from target, return that error
* (except for NOT_FOUND, which is no error here)
*/
+ g_clear_object (&info);
if (my_error != NULL && !g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
{
g_propagate_error (error, my_error);