Can't force push rebased branch (pre-receive hook declined)

Description of the problem

Getting this error when force pushing a previously stale branch that has been rebased onto master:

Pushing to git@gitlab.com:usabilityhub/app.git
Counting objects: 612, done.
Delta compression using up to 8 threads. 
Compressing objects: 100% (538/538), done.
Writing objects: 100% (612/612), 93.32 KiB | 0 bytes/s, done.
Total 612 (delta 487), reused 95 (delta 69)     
remote: Resolving deltas: 100% (487/487), completed with 107 local objects.        
remote: GitLab: API is not accessible        
To gitlab.com:usabilityhub/app.git
 ! [remote rejected]     1859-normalize-screenshot-schema -> 1859-normalize-screenshot-schema (pre-receive hook declined)
error: failed to push some refs to 'git@gitlab.com:usabilityhub/app.git'

Which Group/Project (with full path) is experiencing the issue?

https://gitlab.com/usabilityhub/app

Approximate date/time when the error occurred.

First seen today. Current time:

Fri Sep 22 2017 14:26:43 GMT+1000 (AEST)

Describe what you were doing right before the issue occurred.

Trying to force push after rebasing stale branch onto master. (I do this all the time)

Similar error to https://gitlab.com/gitlab-org/gitlab-ee/issues/1066

changed the description

Do you have file size limits enabled? If so, you might be running into https://gitlab.com/gitlab-org/gitlab-ee/issues/3446.

Not that I'm aware of. It wasn't a large push or anything. To be clear it was just rebasing a couple of commits from master. I could complete the operation by undoing the rebase and doing a merge from master into my branch and then pushing.

I'll have to ask the person with admin permissions if we've enabled a repo size limit, but if it's not on by default I doubt very much that we're using it.

cc @nfm

It looks like we do have a file size limit of 5MB set here: https://gitlab.com/usabilityhub/app/settings/repository. I've just bumped it up to 20MB. I kind of doubt @rhys-vdw would have been pushing anything large though.

I kind of doubt @rhys-vdw would have been pushing anything large though.

I wasn't, no.

Furthermore I did hit this earlier today just pushing a single commit to an existing branch (no rebasing or other funniness). Second attempt succeeded.