Accordion : Content editor dialog is adding "None" twice in Expanded items field

[abhinavsinha347]

Bug Report

Current Behavior Below are the steps performed on vanilla instance with wknd site.

1. Add accordion component on the page
2. Edit the component.
3. Select "Single item expansion" under properties tab.
4. Under the Expanded item field we see "None" appears only once.
5. Navigate to Items tab and add a new component. E.g text component.
6. Check the "Expanded item" under properties tab. "None" option appears twice.

Expected behavior/code "None" option should appear only once under "Expanded item"

Environment

• AEM cloud version : 2023.10.13804.20231005T183332Z-230902
• Core Components : 2.23.4

Possible Solution Issue is because of accordion.js in /libs/core/wcm/components/accordion/v1/accordion/clientlibs/editor/js/accordion.js

Additional context / Screenshots

https://github.com/adobe/aem-core-wcm-components/assets/80462036/403caa67-15b0-4f01-921f-40ae72306295

[abhinavsinha347]

@joerghoh @klcodanr Is there any way this issue can be looked at ?