Ordered lists do not work - counterType is read only

[holybobrius]

Hi! I'm getting this error when adding ordered list to editor.js.

The list is displayed correctly after creating it, but fails to render if it comes from editor's data property

[holybobrius]

The issue happens only when the data comes from backend, if the exact same JSON is stored locally everything works fine. I managed to workaround it by cloning data from backend and passing the cloned object to the editor like this:
const dataFromBackend = structuredClone(originalData);