Netlify-cms: Loading entries does not work with Github backend

[chrfritsch]

Describe the bug
I have an issue very similar to https://github.com/netlify/netlify-cms/issues/2629

After login I can see all my posts, clicking on one I get "Failed to load entry: Access to endpoint not allowed: this part of GitHub’s API has been restricted"

My network looks like:

To Reproduce
Here is my repo https://github.com/TSV-Zorneding-1920/tsv-zorneding-tischtennis and it's connected to https://vigorous-newton-f5373c.netlify.com/

Expected behavior

I can edit my existing posts.

Applicable Versions:

• Netlify CMS version: 2.9.8-beta.4
• Git provider: git-gateway
• OS: MacOS
• Browser version Chrome 78
  
• Node.JS version: 12.11

CMS configuration
https://github.com/TSV-Zorneding-1920/tsv-zorneding-tischtennis/blob/master/static/admin/config.yml

Additional context

[erquhart]

@erezrokah note: keep in mind that Git Gateway is impacted by all GitHub/GitLab backend changes. We'll need test coverage of the Git Gateway backend to keep pace with the backends that it wraps.

[erezrokah]

I think I'm going to prioritize the cypress tests for the other backends once I finish with my current task.

[chocobuckle]

Thanks for your work @erquhart and @erezrokah - this bug is a bit of a showstopper for us today, so much appreciated! :)

[chocobuckle]

Just wondering is this only an issue with 2.9.8-beta.4? Or was it also in the earlier 2.9.8 betas?

[erezrokah]

I might be wrong but I think was also in earlier 2.9.8 betas and was only partially fixed for the latest beta here: https://github.com/netlify/netlify-cms/pull/2631

[chrfritsch]

@chocobuckle You can install https://www.npmjs.com/package/patch-package in your project and copy the patches folder from https://github.com/TSV-Zorneding-1920/tsv-zorneding-tischtennis to your project and then it should work. It's a workaround

[chocobuckle]

@chrfritsch Interesting! Never heard of patch-package. Sounds super useful! I'll give it a go. Thanks for sharing.