Cleanup folders instead of deleting them

Hello,

I'm using a TC agent on Linux. And inside work dir it creates a working directory 8592dba5c9e9cb3 for build. But I would like to use another disk for the folder of the specific build config.
So I created a symlink from work/8592dba5c9e9cb3 to another disk. But TeamCity for some reason deletes the folder at all and recreates it.
Option "Clean all files in the checkout directory before the build" is disabled I even disabled "

Why this happens? I thought that working dir should never be deleted.

Also since I would like to use simlinks in other parts it makes a lot of troubles here: TC deletes a folders instead of just removing all files inside folders.

Is it possible?