Comment marks not included in editor.document output after adding comments

[hsingh-ds]

Describe the bug
When using the comment feature, adding a comment in the editor does not reflect as expected in the document structure. Specifically, when calling editor.document after adding a comment, the returned blocks do not include the comment marks—only the regular block structure is present.

To Reproduce

1. Use the comment functionality as described in the documentation.
2. Add a comment to some text in the editor.
3. Retrieve the blocks using editor.document.
4. Observe that the blocks do not contain the comment mark metadata.