Upgrade codemirror to ^5.65.21

            "codemirror/codemirror": {
               "#3531472: Drupal 10.5 / 11.2 incompatibility": "https://www.drupal.org/files/issues/2025-11-13/ckeditor_codemirror-codemirror-LIBRARY-3531472-copyobj-hasownproperty-fix.diff"
            },

5.6.x also needs this.

With that said, I've accelerated an upstream fix, contacted both maintainers of ckeditor_codemirror with a solution on a silver platter.

Maybe hold off a few days , we'll probably get a patchless fix that allows us to pin to a new minimal ckeditor_codemirror. We'll make a new issue to replace the patch for 6.2.x when the time comes.

#3531472: Drupal 10.5 / 11.2 incompatibility

this was fixed upstream. I'll make a new ticket to unwind our patch.

actually, see the composer-extdeps PR in the related issue, I'll link it here.

Follow-up here:
#3572356: revert codemirror patch and update composer-extdeps

Ok the patch was applied, however upstream was fixed and now we need to back off this patch after merging the composer-extdeps solution. I'll mark this as fixed and we can switch over to the other ticket.

The codemirror upgrade isn't working out so well. Perhaps we were better off with patching 5.65.8

Explanation: Lots of markup in a ckeditor5 editor
maximize the editor in source mode.

Now try to scroll down. Cannot go down to the lower part of the markup.

Appears to be a javascript issue.

I don't recall seeing this with 5.65.8 patched, however will have to try it again myself to be sure.

Assigning this to myself, making it high priority.

still investigating , might not be any issue with vanilla wxt, will check.

Reviewed this upgrade, it's good, the issue I noticed was an edge case related to having a small amount of markup (drupal-embed elements) and a large amount of content in non-source mode.

The editor is working well.