$ git clone -n https://gitee.com/src-opencloudos-rpms/fdk-aac-free.git /var/lib/mock/dist-oc9-build-127101-76494/root/chroot_tmpdir/scmroot/fdk-aac-free
Cloning into '/var/lib/mock/dist-oc9-build-127101-76494/root/chroot_tmpdir/scmroot/fdk-aac-free'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/fdk-aac-free
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d0110ca import fdk-aac-free-2.0.0-6.tl4