$ git clone -n https://src.fedoraproject.org/rpms/sleef.git /var/lib/mock/f41-build-855075-167060/root/chroot_tmpdir/scmroot/sleef
Cloning into '/var/lib/mock/f41-build-855075-167060/root/chroot_tmpdir/scmroot/sleef'...
$ git fetch origin dc2fe28f52e32aa7bc93a3fa81616f14e16db7d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sleef
 * [new ref]         dc2fe28f52e32aa7bc93a3fa81616f14e16db7d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc2fe28 Update to 3.7.0