Bug#822761: Xfce bug 12832

[Fabrice Delliaux]

It's Xfce bug 12832 [1].
The patch was released into Xfdesktop 4.12.4 [2].

1. https://bugzilla.xfce.org/show_bug.cgi?id=12832
2. https://git.xfce.org/xfce/xfdesktop/log/?h=xfce-4.12