Dragging a block object into CKEditor 5 from outside the editor shows an inline caret and splits the paragraph. Here is the root cause (a private _blockMode flag), a working workaround, a live StackBlitz demo, and the fix I proposed upstream in issue #20247.
I needed to see the simple spaces in CKEditor 5, and the only thing out there was a 2019 proof of concept. So I packaged ckeditor5-simple-space: a tiny, dependency-free plugin that shows simple spaces with a toggle button — without ever touching your saved data.
At work I’m running a CKEditor 5 migration from v26 to v47 across some twenty in-house plugins. Instead of tracking it all by hand, I wrote ckeditor_audit: a read-only MCP server that sorts every plugin into four migration statuses, flags what’s live in production, searches the code with ripgrep + ast-grep, and cuts the AI token bill by 80 to 95%.