Hi Robert,
Thank you for your interest in syncfusion products,
Am afraid that am unable to reproduce your reported issue in our current version(10.2.0.75) it is working as per your scenerio too. Please refer to the attached screen shoot which explains the same. I would request you to provide your version details which is helpful for us to provide better solution to you.
Let me know if i any missunderstood.
Regards,
Ragamathullah B.