$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-YAML-LibYAML.git /var/lib/mock/dist-oc9-build-168995-79841/root/chroot_tmpdir/scmroot/perl-YAML-LibYAML
Cloning into '/var/lib/mock/dist-oc9-build-168995-79841/root/chroot_tmpdir/scmroot/perl-YAML-LibYAML'...
$ git fetch origin c60b69d27af1145a5d6192fb1bfca138ef04b9b0:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-YAML-LibYAML
 * [new ref]         c60b69d27af1145a5d6192fb1bfca138ef04b9b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c60b69d import perl-YAML-LibYAML-0.86-6.tl4