$ git clone -n https://gitee.com/src-opencloudos-rpms/libvpx.git /var/lib/mock/dist-oc8-build-235602-82167/root/chroot_tmpdir/scmroot/libvpx
Cloning into '/var/lib/mock/dist-oc8-build-235602-82167/root/chroot_tmpdir/scmroot/libvpx'...
$ git fetch origin 28584ec5455c7f0a115c6622c107a8f73215ad7a:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libvpx
 * [new ref]         28584ec5455c7f0a115c6622c107a8f73215ad7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28584ec import libvpx-1.7.0-13.tl3.ap.1