$ git clone -n https://gitee.com/little-huaduo/llvm18.git /var/lib/mock/dist-an23-build-481295-74252/root/chroot_tmpdir/scmroot/llvm18
Cloning into '/var/lib/mock/dist-an23-build-481295-74252/root/chroot_tmpdir/scmroot/llvm18'...
$ git fetch origin 194e5f1540ab7ccc18818e374613f15dac1779fb:KOJI_FETCH_HEAD
From https://gitee.com/little-huaduo/llvm18
 * [new ref]         194e5f1540ab7ccc18818e374613f15dac1779fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 194e5f1 Add Sw64 target support for llvm18