$ git clone -n https://gitee.com/llvm-la/llvm.git /var/lib/mock/dist-an23-build-322798-68385/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-an23-build-322798-68385/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin 72097bfabdd0418e797c5faa7649af0776ea9e9e:KOJI_FETCH_HEAD
From https://gitee.com/llvm-la/llvm
 * [new ref]         72097bfabdd0418e797c5faa7649af0776ea9e9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 72097bf Fix symbol lookup error on aarch and x86