Statistics Graph Card yaml editor aggressively resets text while typing

[karwosts]

Checklist

• I have updated to the latest available Home Assistant version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.

Describe the issue you are experiencing

In statistics graph card editor, entering a single errant character anywhere in the entities list cause the yaml editor to immediately reset the entire list. Makes it difficult to enter a list, modify the entity list, or add a name key.

Describe the behavior you expected

Show an error if the list is not valid, but don't obliterate the contents while user is trying to type.

Steps to reproduce the issue

...

What version of Home Assistant Core has the issue?

2023.3.1

What was the last working version of Home Assistant Core?

No response

In which browser are you experiencing the issue with?

firefox, chrome

Which operating system are you using to run this browser?

win10

State of relevant entities

No response

Problem-relevant frontend configuration

No response

Javascript errors shown in your browser console/inspector

No response

Additional information

No response