[BUG] Bold format did not get serialized with any punctuation character

Describe the bug
Bold format serialized with any punctuation character cannot be rendered back.

Reproduction
quotes:
https://codesandbox.io/p/sandbox/mdx-editor-base-forked-yzft7z?file=%2Fsrc%2FApp.tsx

Exclamation mark:
https://codesandbox.io/p/sandbox/mdx-editor-base-forked-69dgt8?file=%2Fsrc%2FApp.tsx

(Originally I though it was quotes only, but after posting this bug report I reproduced it with exclamation mark)

To Reproduce
Steps to reproduce the behavior:

1. Go to the codesandbox
   https://codesandbox.io/p/sandbox/mdx-editor-base-forked-yzft7z?file=%2Fsrc%2FApp.tsx
2. In the first editor with markdown md1, select "b" and hit ctrl+b, it makes the "b" 3 chars bold.
3. In the console it should shows content is now equal to md2 a**"b"**c.
4. But in second editor with md2 as initial markdown, it renders nothing bold.

Expected behavior
Ctrl+b should make the text bold even after serialized and deserialized back.

Screenshots

Start with the two linked CodeSandbox reproductions and trace the markdown serialization and deserialization of bold text containing a quote or exclamation mark. Verify the reported round trip from the first editor to the second, and consider the issue done when both punctuation cases render bold after serialization and deserialization.