AutoRepeat setting wrong repeat rate

The "AutoRepeat" rate for a keyboard sets the wrong repeat rate. For example, if I have Option "AutoRepeat" "150 40", this sets the delay rate to 150 (correct) and the repeat rate to 25. I can verify this by viewing the output of xset q: auto repeat delay: 150 repeat rate: 25.

Here is the log output, which shows the correct numbers:

[ 15968.600] (**) Option "xkb_options" "caps:none"
[ 15968.601] (**) Option "AutoRepeat" "150 40"
[ 15968.601] (**) AutoRepeat: 150 40

Here is my /etc/X11/xorg.conf.d/99-keyboard.conf:

Section "InputClass"
        Identifier "system-keyboard"
        MatchIsKeyboard "on"
        Option "XkbOptions" "caps:none"
        Option "AutoRepeat" "150 40"
EndSection

Another configuration could possibly be affecting this, but it is strange that it every time I change the repeat rate, the actual repeat rate set is different (ex. using 50 instead of 40 changes the actual repeat rate to 20).

I'd be happy to submit a fix for this if I figure out what is going on.