$ git clone -n https://src.fedoraproject.org/rpms/kf5-kxmlrpcclient.git /var/lib/mock/f40-build-787374-134746/root/chroot_tmpdir/scmroot/kf5-kxmlrpcclient
Cloning into '/var/lib/mock/f40-build-787374-134746/root/chroot_tmpdir/scmroot/kf5-kxmlrpcclient'...
$ git fetch origin 6945fb6b37f5ef42c98822dab4f941969ae9c694:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kxmlrpcclient
 * [new ref]         6945fb6b37f5ef42c98822dab4f941969ae9c694 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6945fb6 5.115.0