Keymap keeps reverting

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https://bbs.archlinux.org – Hello. I am trying to swap caps lock and control on my keyboard. I am running xfce4. In the past I have used xmodmap for this with no problems. Since my most recent update, it seems that while I can swap the keys with xmodmap, they will swap back within a few minutes. No method that I have yet attempted has been able to swap the keys for longer than a couple minutes. I have tried:Xmodmap: When I run it, it works. However, the keys revert very shortly.Swapping KEYMAP=custom in /etc/vconsole.conf: This works for my standard ttys, but as soon as I start xfce4 it gets blown away by the xfce keymap (HowTos)