$ git clone -n https://gitee.com/mgb01105731/golang-github-istio-viper.git /var/lib/mock/dist-an23-epao-build-299916-65901/root/chroot_tmpdir/scmroot/golang-github-istio-viper
Cloning into '/var/lib/mock/dist-an23-epao-build-299916-65901/root/chroot_tmpdir/scmroot/golang-github-istio-viper'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/golang-github-istio-viper
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30b15e2 init upstream from version 1.3.2