$ git clone -n https://gitee.com/src-opencloudos-rpms/buildah.git /var/lib/mock/dist-oc9-build-137537-79562/root/chroot_tmpdir/scmroot/buildah
Cloning into '/var/lib/mock/dist-oc9-build-137537-79562/root/chroot_tmpdir/scmroot/buildah'...
$ git fetch origin 1aa09f69af36cee68792c1f0e83b0d426da31383:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/buildah
 * [new ref]         1aa09f69af36cee68792c1f0e83b0d426da31383 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1aa09f6 import buildah-1.40.0-1.tl4