This is nothing serious, but could look better.

When I have a bool field that is required and the user doesn't choose yes or no the warning to fill it in is repeated.

Seems like the warning is saying no is required then saying yes is required.

example.

Enter Raffle yes/no

(If not filled in the warning will be)

Enter Raffle :: Required field
Enter Raffle :: Required field

Yes.

Opened ticket.

JDom (html.form.input.radio) affected.

Solved since 1.4.4.