$ git clone -n https://gitee.com/wenyuzifang/compiler-rt.git /var/lib/mock/dist-an23-build-480515-74252/root/chroot_tmpdir/scmroot/compiler-rt
Cloning into '/var/lib/mock/dist-an23-build-480515-74252/root/chroot_tmpdir/scmroot/compiler-rt'...
$ git fetch origin a36d2061f565d7121f7fa2460c6494c67add8a64:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/compiler-rt
 * [new ref]         a36d2061f565d7121f7fa2460c6494c67add8a64 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a36d206 Update code from upstream