title: Mercurial / SCM Manager : How to disable clone capability even if user has read-only permission on a repo?
body: <p>On Mercurial / SCM Manager, we want to enforce following policy:
  User with read-only permission on a repo shall be able to browse the repo in web browser - bu tshall not be able to clone the repo on local PC.</p>
  
  <p>Repo Clone/download on local PC shall be allowed only if user/AD group that he/she is part of has READ-WRITE permission on the repo.</p>
  
  <p>Thanks in advance,
  Manish</p>