xbindkeysrc.service does not start

The xbindkeysrc.service does not start.

systemctl status -l xbindkeysrc shows

[code]xbindkeysrc.service - Xbindrc
Loaded: loaded (/lib/systemd/system/xbindkeysrc.service; enabled)
Active: failed (Result: start-limit) since Mon 2019-08-05 10:17:13 UTC; 2s ago
Process: 26462 ExecStart=/usr/bin/xbindkeys -X :0 -f /etc/xbindkeysrc (code=exited, status=0/SUCCESS)
Main PID: 26462 (code=exited, status=0/SUCCESS)

Aug 05 10:17:13 volumio systemd[1]: xbindkeysrc.service holdoff time over, scheduling restart.
Aug 05 10:17:13 volumio systemd[1]: Stopping Xbindrc…
Aug 05 10:17:13 volumio systemd[1]: Starting Xbindrc…
Aug 05 10:17:13 volumio systemd[1]: xbindkeysrc.service start request repeated too quickly, refusing to start.
Aug 05 10:17:13 volumio systemd[1]: Failed to start Xbindrc.
Aug 05 10:17:13 volumio systemd[1]: Unit xbindkeysrc.service entered failed state.[/code]

Changing the line Restart=always to Restart=on-failure in the service unit solves the issue.

System: Volumio 2.599 on Raspberry Pi 3B

Bug report opened on GitHub: https://github.com/volumio/Volumio2/issues/1789 and https://github.com/volumio/Build/issues/386