Bug: input Chinese character after mention break mention entity and repeat characters

[franckchen]

Lexical version:

Steps To Reproduce

1.https://playground.lexical.dev/
2.type @ to call mention
3. mention anyone
4. input Chinese character
5. Input of Chinese characters has corrupted the entity, and repeated characters have appeared.

2024-06-11.21.04.17.mov

Link to code example:

The current behavior

The expected behavior