To clarify the relationship between this task and T282204: Handle URLs for starting new sections: the patch for T282204 will also resolve this task. Clicking a link to start a new topic on a different page will simply follow it, as it does now, and once the page loads, the new topic tool will open. If I understand correctly, we decided in the meeting yesterday that we are happy with that.

Potentially, that behavior could be improved, particularly in cases where the "different page" is actually transcluded on the current page. For example, on the page fr: Wikipédia:Le Bistro, the link "Ajouter un message" points to starting a new topic on a different page fr: Wikipédia:Le Bistro/28 juillet 2021, but that page is transcluded on the current page (at the bottom), so we could display the new topic and the new message (once its posted) on the current page. I suppose this is out of scope for now.

(just waiting for T282204, no other development needed)

In T282205#7242973, @matmarex wrote:

Clicking a link to start a new topic on a different page will simply follow it, as it does now, and once the page loads, the new topic tool will open. If I understand correctly, we decided in the meeting yesterday that we are happy with that.

This is correct. Let's see how this feels and iterate on it as needed.

Potentially, that behavior could be improved, particularly in cases where the "different page" is actually transcluded on the current page.

Great spot, Bartosz. Let's use this ticket to design for this case: T287595. Note: the title of that task could use improvement.

QA on this can happen once T282204 is resolved.

@ppelberg: This seems to be working as expected. Although, it does not bring back the legacy new section form as you mentioned on the task description by just disabling Discussion Tools beta feature unless I disable it separately from mw-prefsection-editing.