Refactor to new class Checkbox() - fix unit tests

3 jobs for RewriteCheckBoxOwnClass in 3 minutes and 37 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Before
passed documentation #4403

00:00:38

 
  Build
passed snapshot #4404

00:01:21

 
  Selenium
passed selenium #4405

00:01:37