[Bug] Cannot undo reverting to Markdown

[Erik0806]

Bug Description

When writing e.g variable names for planning, the text is turned italic automatically. In this context this is unwanted. In other programs it is possible to convert this change by pressing Ctrl + Z. This however doesn't work for AppFlowy.

How to Reproduce

1. Write '_test_'
2. The text will be replaced by 'test'
3. Press Ctrl + Z
4. The text will be completely removed

Expected Behavior

Text will be converted back to '_test_'

Operating System

Linux (but is irrelevant for this)

AppFlowy Version(s)

0.0.9

Screenshots

No response

Additional Context

No response