Description

• Can you reproduce the issue?

Steps to reproduce

1. Create a header like this ### Header 3
2. Create a empty paragraph above this header, and put cursor at the beginning of header <cursor>### Header 3
3. Press backspace key

Expected behavior:

Just delete the empty paragraph, and move the header up.

Actual behavior:

The empty removed, but this header also disappeared.

Link to an example: [optional]

Versions

• Mark Text: all
• Operating system: all