$ git clone -n https://src.fedoraproject.org/rpms/koko.git /var/lib/mock/f42-build-871377-177577/root/chroot_tmpdir/scmroot/koko
Cloning into '/var/lib/mock/f42-build-871377-177577/root/chroot_tmpdir/scmroot/koko'...
$ git fetch origin 1929be55cc2a991138f89b075558d9396eb6e926:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/koko
 * [new ref]         1929be55cc2a991138f89b075558d9396eb6e926 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1929be5 24.12.2