$ git clone -n https://gitee.com/renbo02/clang.git /var/lib/mock/dist-an23-build-358727-71155/root/chroot_tmpdir/scmroot/clang
Cloning into '/var/lib/mock/dist-an23-build-358727-71155/root/chroot_tmpdir/scmroot/clang'...
$ git fetch origin cc37b152f0b9170f98ad475d12d4b7313a8161a6:KOJI_FETCH_HEAD
From https://gitee.com/renbo02/clang
 * [new ref]         cc37b152f0b9170f98ad475d12d4b7313a8161a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc37b15 Rebuild with python3.11