After rendering the content using 'initialValue', ctrl+z will undo it to blank space, and this issue also exists in the demo on the official website

[zealpane]

Describe the bug

After rendering the content using 'initialValue', ctrl+z will undo it to blank space, and this issue also exists in the demo on the official website



To Reproduce

Steps to reproduce the behavior:

1. Go to Editor
2. Click on 'ctrl + z'
3. See error
   

Expected behavior

Ctrl+Z should only be able to undo to the initialized value at the earliest, not blank



Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]
  

Smartphone (please complete the following information):

• Device: PC
• OS: Windows 11
• Browser Edge
• Version 124.0.2478.39

[rawstream]

@zealpane Opened a PR: #3270