> It would be great to have a test for this issue.

Automated accessibility tests caught it AFAIK there's no need to write an additional test

https://up1.xwikisas.com/#y5vTduRAFVxyA7q6ibgXsw

https://ci.xwiki.org/job/XWiki%20Environment%20Tests/job/xwiki-platform/job/master/380/testReport/junit/org.xwiki.ckeditor.test.ui/AllIT/MySQL_8_2__Tomcat_9_jdk17__Chrome___Docker_tests_for_xwiki_platform_ckeditor___Build_for_MySQL_8_2__Tomcat_9_jdk17__Chrome___Docker_tests_for_xwiki_platform_ckeditor______/