$ git clone -n https://gitee.com/llvm-la/llvm.git /var/lib/mock/dist-an23-build-python3.11-373980-71584/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-an23-build-python3.11-373980-71584/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin f0e2f93d68e75d647c6a7ec41969f6bb164feff6:KOJI_FETCH_HEAD
From https://gitee.com/llvm-la/llvm
 * [new ref]         f0e2f93d68e75d647c6a7ec41969f6bb164feff6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0e2f93 LoongArch: Backport patches from release/18.x(9b3edb592deb)