Cannot read properties of null (reading '$connector') on unobserveThemeChange call

[paodb]

Describe the bug

This error is visible in browser console when switching between views in the component's demo.

According to the error in the console The error has occurred in the JS code: '$0, window.Vaadin.Flow.fcMarkdownEditorConnector.unobserveThemeChange($0)', this is happeing on the BaseMarkdownComponent#onDetach call.

Expected behavior

No error in browser console.

Minimal reproducible example

Go to https://addonsv24-staging.flowingcode.com/markdown-editor or start the demo locally and then go to the second tab and the error will be visible in the browser console.

Add-on Version

2.0.1-SNAPSHOT

Vaadin Version

24

Additional information

N/A