$ git clone -n https://src.fedoraproject.org/rpms/python-zope-interface.git /var/lib/mock/f40-build-2142845-50851/root/chroot_tmpdir/scmroot/python-zope-interface
Cloning into '/var/lib/mock/f40-build-2142845-50851/root/chroot_tmpdir/scmroot/python-zope-interface'...
$ git fetch origin 2db0edee8414ee9dc9105ffdb5a4ba8541f66fb5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-zope-interface
 * [new ref]         2db0edee8414ee9dc9105ffdb5a4ba8541f66fb5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2db0ede Convert to %autorelease and %autochangelog