$ git clone -n https://gitee.com/src-anolis-os/gcc-toolset-15.git /var/lib/mock/dist-an23.4-build-536481-82628/root/chroot_tmpdir/scmroot/gcc-toolset-15
Cloning into '/var/lib/mock/dist-an23.4-build-536481-82628/root/chroot_tmpdir/scmroot/gcc-toolset-15'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/gcc-toolset-15
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e715025 init