Two points of feedback:
I made this edit to a section. I see two post-edit differences of behavior (which may [not] be deliberate and which may [not] be desirable):
- The URL at the end of the edit, and where my browser subsequently returned me, was https://en.wikipedia.org/wiki/Wikipedia_talk:Manual_of_Style/Self-references_to_avoid . Old section editing behavior (and I'm too lazy to confirm this, so forgive me if I'm wrong) appends the edited section's id as an anchor to the URL, so I'm returned to the section I was just editing. I would suggest the old behavior is patently desirable.
- The article history and elsewhere does not have the section listed in the edit summary. Having the section listed would be, at-best, desirable, and at-worst, required, for general rollout.