Pull request approval without fetch

[GuyCatz]

What feature do you want to see added?

Our branches are large (<10GB). When we approve a pull request, we have to wait for the fetch to complete first and in our case it takes about an hour to fetch.

I'd like to be able to approve a PR without fetch at all. The logic whether or not to approve is already written and for that we don't need the whole branch.

Maybe this is already possible?

Upstream changes

No response