📝 Provide detailed reproduction steps (if any)

The issue is detailed in #9646.
When calling editor.setData() on an editor with RestrictedEditingException plugin, produces incorrect text (blank blocks).

1. Go to https://ckeditor.com/docs/ckeditor5/latest/features/restricted-editing.html
2. Switch to restricted mode
3. Do editor.setData(editor.getData()) few times

✔️ Expected result

New data visualized correctly.

❌ Actual result

New data is visualized with extra <span class="restricted-editing-exception"></span>.

❓ Possible solution

Described in #9646.

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