An issue about deleting first entry in multi-level list needs help.
Steps to reproduce the issue are as follows:
- Create multiple paragraphs with multi-level list applied(using DocumentList)
- Add bookmark at the beginning of each paragraph
- Delete all the characters in the first paragraph one by one using Backspace from keyboard
Then the first paragraph cannot be deleted. While selecting the whole text of the paragraph and deleting them works well since bookmark will be deleted also in this case.