将带格式的文本转化为引用块会出错

Is there an existing issue for this?

• I have searched the existing issues

Can the issue be reproduced with the default theme (daylight/midnight)?

• I was able to reproduce the issue with the default theme

Could the issue be due to extensions?

• I've ruled out the possibility that the extension is causing the problem.

Describe the problem

将带格式的文本转化为引用块会出现重复文本，示例如下：

Expected result

修复该问题

Screenshot or screen recording presentation

No response

Version environment

- Version: 2.9.7
- Operating System: win10
- Browser (if used):

Log file

无需日志

More information

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