Deleting parent list leaves nested lists orphaned about quill HOT 2 OPEN

I would do something pretty similar but one missing case in your demo is deleting. Also instead of updating class names directly, you could go with quill.updateContents() to update the contents directly.

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@luin Thanks for the response, would you mind helping me understand how to use updateContents to achieve this? It seems pretty challenging to go from a tree of Blot nodes to deltas that apply on positions. IIUC the hard bit is that you have to construct a delta for each list item (which can be further nested) since each item is on a different line.

I'm happy to go read a bunch of code and figure it out but some pointers would be pretty helpful!

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