There is “Visual Realtime Collaborative Editor” (https://extensions.xwiki.org/xwiki/bin/view/Extension/RtWysiwyg) and “Realtime Collaborative Plain WikiText Editor” (https://extensions.xwiki.org/xwiki/bin/view/Extension/RtWiki).
So one is used when using WYSIWYG editing and one in plain text editing - I thought that this was the “source” view.
However, https://extensions.xwiki.org/xwiki/bin/view/Extension/RtWysiwyg#HDescription explicitly states that Source view is now supported by RtWysiwyg, but that only one user should edit it in this case.
This somewhat contradicts the description of RtWiki, so those editors really are two things, and one is employed of WYSIWYG editing is enabled and RtWiki is only used if WYSIWYG editing is disabled completely?
I didn’t try so far, but from my understanding editing mode is (or can be) a per-user preference, so what happens if one user edits a document in WYSIWYG mode while another tries to edit in in plain text mode at the same time? Or can’t this happen?
If only one user should edit RtWysiwyg’s source view, is this enforced in any way or are the other users warned somehow? (Just tried to test this but cannot get real-time editing to work at the moment in general - the second, joining session just blocks, I’ll have to look into this more closely later…)