$ git clone -n https://src.fedoraproject.org/rpms/kde-cli-tools.git /var/lib/mock/f42-build-side-1-3586543-46923/root/chroot_tmpdir/scmroot/kde-cli-tools
Cloning into '/var/lib/mock/f42-build-side-1-3586543-46923/root/chroot_tmpdir/scmroot/kde-cli-tools'...
$ git fetch origin 7c6504402205f7e09459e119cbfc37ecce6d0a6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kde-cli-tools
 * [new ref]         7c6504402205f7e09459e119cbfc37ecce6d0a6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c65044 6.4.2