$ git clone -n https://gitee.com/src-anolis-os/flex.git /mnt/mock/kojid//dist-an23.3-riscv64-gcc14-build-476122-74119/root/chroot_tmpdir/scmroot/flex
Cloning into '/mnt/mock/kojid//dist-an23.3-riscv64-gcc14-build-476122-74119/root/chroot_tmpdir/scmroot/flex'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/flex
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b38f76e optimise spec and patch file