Every time these examples occur, after publicly demonstrating precisely who you are, the organization denies this is who they are – this is the “Begging the Question fallacy”:

“Following tonight’s men’s basketball game, it was brought to our attention that an unacceptable chant occurred,” Reed-Francois said in a statement. “On behalf of the University of Arizona Athletic Department, we apologize to BYU, their student-athletes, coaches and fans. The chant is not reflective of who we are and should not have happened.”

Arizona apologizes for ‘unacceptable’ anti-Mormon chant aimed at BYU after controversial loss

This is the “begging the question” fallacy. We see this ALL THE TIME from businesses who screw up and then say this is not who we are, immediately after demonstrating that it is who they are. Lots more examples on this blog in the Begging the Fallacy tag.