$ git clone -n https://gitee.com/src-opencloudos-rpms/compiler-rt.git /var/lib/mock/dist-oc9-build-40845-14591/root/chroot_tmpdir/scmroot/compiler-rt
Cloning into '/var/lib/mock/dist-oc9-build-40845-14591/root/chroot_tmpdir/scmroot/compiler-rt'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/compiler-rt
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 707f757 import compiler-rt-14.0.5-3.tl4