Tinkerbell look-alike barred from Animal Kingdom

From DIS News - A girl (April Spielman) dressed in a Tinkerbell outfit was barred from Animal Kingdom, apparently because she looked too much like the real Disney character.  According to this story , April and her friend, who happened to be dressed as Peter Pan, were stopped at the entrance to AK and she was asked to change clothes.

 The pair was allowed into Disney's Hollywood Studios with no issues, but they were stopped by security officers at the Animal Kingdom later that day. Spielman was told she would have to change the clothes to enter the park.

 They gave her a free t-shirt to put on and gave the family some fast passes.  I wonder if the shirt said "I am not Tinkerbell".  Interestingly, they got into Hollywood Studios earlier without any problem and nobody said anything about the guy's Peter Pan outfit at AK.