$ git clone -n https://src.fedoraproject.org/rpms/xvattr.git /var/lib/mock/f38-build-715975-95747/root/chroot_tmpdir/scmroot/xvattr
Cloning into '/var/lib/mock/f38-build-715975-95747/root/chroot_tmpdir/scmroot/xvattr'...
$ git fetch origin 1d30a3cf04770709b1876331a8bde658c6966bf6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xvattr
 * [new ref]         1d30a3cf04770709b1876331a8bde658c6966bf6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d30a3c Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild