$ git clone -n https://gitee.com/mgb01105731/golang-github-sergi-diff.git /var/lib/mock/dist-an23-epao-build-299611-65900/root/chroot_tmpdir/scmroot/golang-github-sergi-diff
Cloning into '/var/lib/mock/dist-an23-epao-build-299611-65900/root/chroot_tmpdir/scmroot/golang-github-sergi-diff'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/golang-github-sergi-diff
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7144013 init upstream from version 1.3.1