$ git clone -n https://src.fedoraproject.org/rpms/python-virtualenv-clone.git /var/lib/mock/f40-build-2204565-51963/root/chroot_tmpdir/scmroot/python-virtualenv-clone
Cloning into '/var/lib/mock/f40-build-2204565-51963/root/chroot_tmpdir/scmroot/python-virtualenv-clone'...
$ git fetch origin 314960bd63ec052b03867c4e075197d68ca709d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-virtualenv-clone
 * [new ref]         314960bd63ec052b03867c4e075197d68ca709d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 314960b Instead of updating the patch, extend the list of Python versions dynamically