Comment 12 for bug 780986

I agree that this bug should be fixed sooner than later, since it may be a security concern as others have pointed out.

In the meantime, here is my workaround: put this command in a user cron job to be executed each hour (or each day, whatever you want):

if ! pgrep "deja-dup" > /dev/null; then gio mount -u smb://username@yourserveraddress/path/to/deja-dup-folder; fi

Basically, what it will do is that if there is no deja-dup process running, it will unmont the SAMBA/CIFS share mounted by deja-dup