$ git clone -n https://gitee.com/little-huaduo/compiler-rt.git /var/lib/mock/dist-an23-build-442201-73171/root/chroot_tmpdir/scmroot/compiler-rt
Cloning into '/var/lib/mock/dist-an23-build-442201-73171/root/chroot_tmpdir/scmroot/compiler-rt'...
$ git fetch origin e2b256793257a456867115eb3eb322e6ef9ff5e4:KOJI_FETCH_HEAD
From https://gitee.com/little-huaduo/compiler-rt
 * [new ref]         e2b256793257a456867115eb3eb322e6ef9ff5e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2b2567 Add Sw64 support for compiler-rt