The [[ https://www.mediawiki.org/wiki/Help:Two_Column_Edit_Conflict_View | Two-Column-Edit-Conflict-View extension ]] is a (soon to be default) beta feature that offers a different way to solve edit conflicts. Since [[ https://grafana.wikimedia.org/d/000000213/mediawiki-edit-conflicts?refresh=1m&orgId=1&var-interval=30d&from=now-30d&to=now | most edit conflicts happen in the main namespace ]] the extension is focused on this use case. However, many people are annoyed from running into edit conflicts on talk pages, where all they wanted to do is reply to another person, and have this appear underneath.
As a Wikimedia editor,
I want to see my comment below conflicting other people's comments, whenever I answer at the same time as them,
so that I don't need to deal with edit conflicts
 If there is exactly one change on the page, and the page is a talk page, and the changes were attempted at the exact same spot as another conflicting edit (with exactly one change), then we show users a suggestion to solve this (see mock)
 When the user is getting into that edit conflict for talk pages for the first time, they will be shown a popup explaining the circumstances and how to deal with them (similar to the regular edit conflict). This popup can be disabled for future scenarios. (Mock to be delivered)
 If users don't take any action and click on "apply changes", their text will be inserted immediately under the conflicting one.
 If users choose to take action they can do the following:
 users are able to drag and drop their or the other user's comment to change the order of these two paragraphs. This will only be possible for the two conflicting comments and only in in the specific spot the conflict occured.
 users are able to edit their own comment by clicking the edit pen. They wont be able to edit the other user's comment. This would need to be done in a separate edit if at all.
 Users should be able to get a preview before publishing the edit.
**Nice to haves**
 There is a per-wiki configurable message that allows communities to define their edit conflict marker (e.g.** (EC)**). If this was filled for a community, it should be added to the beginning of the user's text.
 If people want to leave the page without clicking the "publish" button, they should see a browser warning that their content would be lost.
 Design metrics for success / failure of this use case.