$ git clone -n https://gitee.com/src-anolis-os/screen.git /var/lib/mock/dist-an23.4-build-526225-78760/root/chroot_tmpdir/scmroot/screen
Cloning into '/var/lib/mock/dist-an23.4-build-526225-78760/root/chroot_tmpdir/scmroot/screen'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/screen
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75f6d68 update screen.spec.