$ git clone -n https://gitee.com/yan1hcdc/compiler-rt18.git /var/lib/mock/dist-an23-build-442991-73188/root/chroot_tmpdir/scmroot/compiler-rt18
Cloning into '/var/lib/mock/dist-an23-build-442991-73188/root/chroot_tmpdir/scmroot/compiler-rt18'...
$ git fetch origin cd6c1cb2ca6cf840e3cc625bda6b9d4b30f058b4:KOJI_FETCH_HEAD
From https://gitee.com/yan1hcdc/compiler-rt18
 * [new ref]         cd6c1cb2ca6cf840e3cc625bda6b9d4b30f058b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cd6c1cb add support for riscv build