I have a repeater filed. The user adds as many types of fruits as they like. However, I want to prevent a user from entering the same fruit twice. This state of "uniqueness" is solely for that user, not across all users. For example, user John Doe can not enter Apple, Mango, Orange and Apple. John Doe should be prevented from entering the second Apple entry. However, another user, Jane Doe, should be able to enter Apple, Pear, and Pawpaw. This means I can't use the typically "Unique" feature that Formidable provides by default.