$ git clone -n https://gitee.com/opencloudos-stream/llvm-toolset-19.git /var/lib/mock/dist-oc9-epol-build-231136-81560/root/chroot_tmpdir/scmroot/llvm-toolset-19
Cloning into '/var/lib/mock/dist-oc9-epol-build-231136-81560/root/chroot_tmpdir/scmroot/llvm-toolset-19'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/llvm-toolset-19
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9adb22 !1 add llvm19 toolset Merge pull request !1 from Xinlong-Chen/master