$ git clone -n https://src.fedoraproject.org/rpms/jaxen.git /var/lib/mock/f38-build-side-42-init-devel-693914-26962/root/chroot_tmpdir/scmroot/jaxen
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-693914-26962/root/chroot_tmpdir/scmroot/jaxen'...
$ git fetch origin dc66a80f676ad5ad61ff4b5607bdcb2fcaf6a39e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jaxen
 * [new ref]         dc66a80f676ad5ad61ff4b5607bdcb2fcaf6a39e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc66a80 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild