Implement diff for merged and closed changesets, when available (!11000) · Merge requests · Administrator / sourcegraph

Administrator requested to merge es/diff-merged-closed into master May 26, 2020

Created by: eseliger

Closes #10959

I implemented it using the hidden refs. Bitbucket, however removes the refs of closed PRs, so I didn't find a way to retrieve it for those.

Implement diff for merged and closed changesets, when available