$ git clone -n https://gitee.com/lxpzero/llvm.git /var/lib/mock/dist-an23-build-357598-71155/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-an23-build-357598-71155/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin 7400a688084b10648446ab979e474c04cb84463a:KOJI_FETCH_HEAD
From https://gitee.com/lxpzero/llvm
 * [new ref]         7400a688084b10648446ab979e474c04cb84463a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7400a68 update to 17.0.6