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

[felix98765]

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

[felix98765]

Tested with unicode quote, also cannot get serialized.

Repro:
https://codesandbox.io/p/sandbox/mdx-editor-base-forked-jl66r3?file=%2Fsrc%2FApp.tsx%3A47%2C6

[felix98765]

Actually bold format cannot get serialized with any prunctuation, doesn't matter it is quotes or not.

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

[petyosi]

I believe that this problem falls into the category of formatting that's possible to be done in the rich text environment, but impossible to be converted to a valid markdown. If you try writing the same markdown in StackEdit, you get the same problem.

Happy to accept a contribution that fixes it, but I am not aware of a way to address it.