$ git clone -n https://gitee.com/src-anolis-os/libummu.git /var/lib/mock/dist-an23.6-build-586085-98020/root/chroot_tmpdir/scmroot/libummu
Cloning into '/var/lib/mock/dist-an23.6-build-586085-98020/root/chroot_tmpdir/scmroot/libummu'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/libummu
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f016792 Init libummu, version 1.0.5