$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-10-valgrind.git /var/lib/mock/dist-an23-build-python3.11-389662-71986/root/chroot_tmpdir/scmroot/gcc-toolset-10-valgrind
Cloning into '/var/lib/mock/dist-an23-build-python3.11-389662-71986/root/chroot_tmpdir/scmroot/gcc-toolset-10-valgrind'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-10-valgrind
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae18fa2 init upstream 3.23.0