$ git clone -n https://gitee.com/src-opencloudos-rpms/libportal.git /var/lib/mock/dist-oc9-build-70455-47434/root/chroot_tmpdir/scmroot/libportal
Cloning into '/var/lib/mock/dist-oc9-build-70455-47434/root/chroot_tmpdir/scmroot/libportal'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libportal
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f455bb7 import libportal-0.6-4.tl4