$ git clone -n https://gitee.com/src-anolis-os/python-backrefs.git /var/lib/mock/dist-an23.5-build-575655-93304/root/chroot_tmpdir/scmroot/python-backrefs
Cloning into '/var/lib/mock/dist-an23.5-build-575655-93304/root/chroot_tmpdir/scmroot/python-backrefs'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/python-backrefs
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3bfa74 update python-backrefs.spec.