I've discovered a bug in the tabbing order when the Share Feedback modal is shown from the Review Queue.
- Select "Share feedback"
- Click "Submit" to open the modal
- Ensure that "Custom comment" or "Question is too broad" is selected
- Repeated press Shft Tab to navigate around the DOM elements within the modal. After leaving focus of the selected radio button, the focus jumps out of the modal and onto the "Add a comment" text/link in the parent layer.
Navigating the modal using only Tab does not trigger this bug -- the focus remains solely on elements within the modal.