Sep 15 2020
Sorry for making you go another round of the same discussion!
I read the initial message again and don't understand what is unclear.
Sep 3 2020
I thought I play a user here and you are the developer ))
I'm aware of the Visual Editor. I did mention "code editors" in the header of this task. Many WP editors and administrators use code to check and fix markup. Code editing is also faster and easier when editing a part of a long and complex article. And AFAIK all the discussions are still code-editor-only. The core of the WP editor spends a lot of time in the discussions, including all the forums of WP so it's very needed.
So it will look just like here: https://phabricator.wikimedia.org/T261936#6432737 - a link to the initial post of this issue.
Aug 31 2020
Sorry that I failed to find the non-duplicate item to contribute to. I would call it a feature request, not a bug, that's why I didn't put the steps.
This option works perfectly, at least for the Russian language. Email clients parse message body and highlight it as a link, on click the browser also follows such a link, no problem with it. See my duplicate for an example: https://phabricator.wikimedia.org/T261611
Aug 29 2020
I suspect that this legacy stuff affects another unwanted result. If you look at any of these local 'Wanted pages' lists: