尝试使用gitlab CI保持两个git repo同步时发生错误，更新被拒绝

我使用gitlab CI使我的代码库在两个不同的gitlab部署中保持同步。我只希望推送到一个gitlab部署，然后让CI自动推送到第二个gitlab部署

为了做到这一点，我在我的

.gitlab ci.yml

中添加了登录名，但是，在推到第二个gitlab部署时，我得到了错误：

$ git pull origin master
From https://gitlab.firstdeployment.com/MYGROUP/myrepo
 * branch            master     -> FETCH_HEAD
Already up-to-date.
$ git pull seconddeployment master
From gitlab.seconddeployment.com:MYGROUP/myrepo.git
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> io/master
Already up-to-date.
$ git status
HEAD detached at 6e8093e
nothing to commit, working directory clean
$ git push io master
To gitlab.seconddeployment.com:MYGROUP/myrepo.git
 ! [rejected]        master -> master (non-fast-forward)
error: failed to push some refs to 'gitlab.seconddeployment.com:MYGROUP/myrepo.git'
hint: Updates were rejected because a pushed branch tip is behind its remote
hint: counterpart. Check out this branch and integrate the remote changes
hint: (e.g. 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

---

我知道我可以强制使用

push-f

，但是，我不明白为什么我在做正确的

pull

git状态时会从CI中得到这个错误，你确定
git pull
做了你想要的吗？尝试
git checkout master
，然后
git pull
@LasseV.Karlsen您建议我在
git pull origin master
或
git pull second deployment master
之后执行
git checkout master
？