$ git clone -n https://gitee.com/src-opencloudos-rpms/alsa-lib.git /var/lib/mock/dist-oc9-build-69430-47299/root/chroot_tmpdir/scmroot/alsa-lib
Cloning into '/var/lib/mock/dist-oc9-build-69430-47299/root/chroot_tmpdir/scmroot/alsa-lib'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/alsa-lib
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50bad9a import alsa-lib-1.2.9-2.tl4