[BUG] (cmd/ctrl)+a (Select All) in rich-text view, then delete/backspace deletes front-matter

[rbbydotdev]

• I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• I have read the documentation and cannot find an answer.

Describe the bug
(cmd/ctrl)+a (Select All) in rich-text view, then delete/backspace the text will delete the front-matter. This is likely to be expected in source mode, since you are 'selecting' it, but this is otherwise invisible in source mode

Reproduction
Start from https://codesandbox.io/p/sandbox/mdx-editor-base-q8s7zr?file=/src/App.tsx to reproduce the problem so that I can observe the issue on my side and make sure that the fix reliably addresses it.

To Reproduce
Steps to reproduce the behavior:

1. Go to rich-text editor view
2. press cmd+a for select all
3. hit back space to clear text
4. check front-matter

Expected behavior
Expecting front-matter to remain, when this is done in rich-text mode
screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: MacOS
• Browser FireFox

[github-actions]

🎉 This issue has been resolved in version 3.17.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀