$ git clone -n https://gitee.com/zhaohang_mskdxl/llvm-toolset.git /var/lib/mock/dist-an8.8-build-326805-69012/root/chroot_tmpdir/scmroot/llvm-toolset
Cloning into '/var/lib/mock/dist-an8.8-build-326805-69012/root/chroot_tmpdir/scmroot/llvm-toolset'...
$ git fetch origin 4ba18b9ba2845b0242a899d8dda4c5097180a229:KOJI_FETCH_HEAD
From https://gitee.com/zhaohang_mskdxl/llvm-toolset
 * [new ref]         4ba18b9ba2845b0242a899d8dda4c5097180a229 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ba18b9 lld add loongarch64 arch