标题结构整体复制重复后，不能保持原有结构

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

如图，整体复制后，不能保持原有结构，必须手动进行调整。

Expected result

维持原有结构，不要互相插入

Screenshot or screen recording presentation

Version environment

- Version: 289
- Operating System: win11
- Browser (if used):

Log file

siyuan.log

More information

No response