$ git clone -n https://src.fedoraproject.org/rpms/zenon.git /var/lib/mock/f38-build-side-42-init-devel-829730-28366/root/chroot_tmpdir/scmroot/zenon
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-829730-28366/root/chroot_tmpdir/scmroot/zenon'...
$ git fetch origin 77525430095a24068b2a01fffb123d2d63380644:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zenon
 * [new ref]         77525430095a24068b2a01fffb123d2d63380644 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7752543 Rebuild for coq 8.17.0