Currently, this is the tooltip you see when hovering over the green box in the question summary:
one of the answers was accepted as the correct answer
When there is only one answer (which is accepted), this tooltip seems incorrect as "one of the answers" suggests that there is more than one answer to the question.
This should be changed to something more general; the best suggestion would be to change it to:
An answer to this question was accepted as the correct answer
Can this be fixed?