On Thu, Feb 13, 2020 at 1:57 AM Antoine Pitrou <antoine@python.org> wrote:


I would say it depends what the "revert" means:
- revert to pre-bugfix behavior?

This.
Because the bug-fix was a bringing in backward-incompatible change that certain users are not happy with.
https://github.com/mozilla/bleach/issues/503

> - revert then apply a safer fix to the original bug?

No. The change introduced (bug-fix) was helpful in terms of consistent parsing and further improvement from maintainers pov.
A safer fix might essentially mean revert to the old behavior.

The original bug(s) were about parsing expectations of an ill-defined 'scheme-less' URLs.
Developers who relied on older behavior are surprised.