$ git clone -n https://gitee.com/src-opencloudos-rpms/giflib.git /var/lib/mock/dist-oc9-build-60047-16463/root/chroot_tmpdir/scmroot/giflib
Cloning into '/var/lib/mock/dist-oc9-build-60047-16463/root/chroot_tmpdir/scmroot/giflib'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/giflib
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac7dd15 import giflib-5.2.1-6.tl4