upternatives reverts x-terminal-emulator to auto every 30 minutes,

[oolon]

I have both quantal and raring boxes. I have urxvt set as the x-terminal-emulator on both. For the last few days, the x-terminal-emulator setting in alternatives has been reverting to the default (konsole) at what seems like 30 minute intervals.

It's not related to login/logout or reboot as the raring machine remains permanently logged in.

I've tried using galternatives, and update-alternatives to change the setting, but the same happens with both. It runs urxvt for a while and then reverts to konsole.

I've grepd for 'alternatives' in /etc/cron* and haven't found anything. I've tried changing the awk alternative to something non-default and it stayed set, so the problem doesn't affect all packages.

Last night, everytime it changed the symlink in /etc/alternatives was time stamped *:37 or *:07. Today it's *:11 or *:41.

To reproduce, run 'update-alternatives --config x-terminal-emulator' and set to urxvt. Wait half an hour and check /etc/alternatives/x-terminal-emulator.