$ git clone -n https://gitee.com/src-opencloudos-rpms/libisofs.git /var/lib/mock/dist-oc9-build-128261-77234/root/chroot_tmpdir/scmroot/libisofs
Cloning into '/var/lib/mock/dist-oc9-build-128261-77234/root/chroot_tmpdir/scmroot/libisofs'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libisofs
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf54ac7 import libisofs-1.5.6-4.tl4