$ git clone -n https://gitee.com/mgb01105731/couchdb.git /var/lib/mock/dist-an23-build-274032-64220/root/chroot_tmpdir/scmroot/couchdb
Cloning into '/var/lib/mock/dist-an23-build-274032-64220/root/chroot_tmpdir/scmroot/couchdb'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/couchdb
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d448d2 init upstream from version 3.1.1