$ git clone -n https://gitee.com/src-opencloudos-rpms/libsigcplusplus30.git /var/lib/mock/dist-oc9-la64-build-136783-79246/root/chroot_tmpdir/scmroot/libsigcplusplus30
Cloning into '/var/lib/mock/dist-oc9-la64-build-136783-79246/root/chroot_tmpdir/scmroot/libsigcplusplus30'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libsigcplusplus30
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0676871 import libsigc++30-3.4.0-4.tl4