1. Create a Winforms application containing RichTextEditorRibbonBar

2. Add a CodedUI test project

3. Start the application and add a new CodedUITest

4. Drag the Spy from the "UIMap - Coded UI Test Builder" onto a disabled radButtonElement - for example "Delete All" button in the "Review" tab

You will see that the Enabled property value is true instead of false.