Someone raised a PR for the opensource project "fast XML parser". Since this was a major change, it was difficult to review. I asked for the purpose and requested to break it into multiple PRs, where 1 PR should have related changes only. And any good change but unnecessary change can be avoided to scheduled for later.

We had long arguments for a month or two.

I don't know why but instead of breaking the PR, the contributor keep updating his PR for every commit someone made on the original repo.

He also stopped contributing for other changes, and commenting on other issues. (Change in the behavior)

Finally after 5-6 months, I had to close the PR as it was not active, having conflicts and not as per guidelines.