No way to set 'push rules' 'Check whether author is a GitLab user' as a default for all repos

Summary

There's no way to set 'push rules' 'Check whether author is a GitLab user' as a default for all repos

We need to have this set on all our repos as a result of https://gitlab.com/gitlab-org/gitlab-ee/issues/1887 but there's no way to specify that newly reported repos should have this set and it defaults to off.

Steps to reproduce

1. create a new repo

What is the current bug behavior?

'Check whether author is a GitLab user' is not set.

What is the expected correct behavior?

We need 'Check whether author is a GitLab user' to be set automatically.