closeidle not working

[M-Mommsen]

Is there a trick to get --closeidle to work on files which are unchanged, but not untouched (mtime seems to be increasing without content changes) ? I am watching some log files which seem to be in write access, without actually being written to. So the windows are kept open. Soltution would be to check for actual content or size change.

I think it's a special case. But worth mentioning and maybe it is not as rare.