[Question]: The MD formatted document is chunked incorrectly

[changqingla]

Self Checks

• I have searched for existing issues search for existing issues, including closed ones.
• I confirm that I am using English to submit this report (Language Policy).
• Non-english title submitions will be closed directly ( 非英文标题的提交将会被直接关闭 ) (Language Policy).
• Please do not modify this template :) and fill in all the required fields.

Describe your problem

I set the chunk size to 128, and while most chunks are normal, a few chunks are extremely large, far exceeding 128.