In my experience, here's what happens in DO 12.9 under Win7/SP1/x64 with SymLinks:
[+] Link from one mapped network drive to another: deleting link to file works fine and leaves the target file intact.
[+] Link from one folder on a local drive to another one on the same drive or on a network drive: deleting link to folder works fine and leaves the target folder and its contents intact.
[–] Link from a mapped network drive pointing to a folder on a local or network drive: deleting link to folder removes the link and empties the target folder. <- Problem.
Is this a bug? Is there a way to delete a symbolic link to folder (and not the contents of the linked folder) under all circumstances?
(Tested with a junction on the remote machine, pointing to another folder on the same remote machine. Other things like softlinks to UNC paths did not work at all for me, even outside of Opus and before trying to delete them.)