$ git clone -n https://gitee.com/mgb01105731/golang-gopkg-russross-blackfriday-2.git /var/lib/mock/dist-an23-epao-build-300222-65935/root/chroot_tmpdir/scmroot/golang-gopkg-russross-blackfriday-2
Cloning into '/var/lib/mock/dist-an23-epao-build-300222-65935/root/chroot_tmpdir/scmroot/golang-gopkg-russross-blackfriday-2'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/golang-gopkg-russross-blackfriday-2
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65f0d45 init upstream from version 2.1.0