The problem I run into when reviewing PRs on Github is that many people rebase or otherwise mutate their history locally to address review comments, then force

The problem I run into when reviewing PRs on Github is that many people rebase or otherwise mutate their history locally to address review comments, then force push to the branch being reviewed. Once they've done that, you've lost the original commits and can't see how the new ones differ. https://github.com/isaacs/github/issues/997 https://github.com/isaacs/github/issues/997