A North Tustin middle school forced a special needs student to stay outside in 90-degree weather after being kicked out for not wearing a mask.    Ezra Nelson’s first day of school at Hewes Middle School was off to a smooth start until he arrived maskless to choir class. After being asked to put one on, Ezra politely declined, telling his teacher he preferred not to.    Along with a doctor’s note and 504 plan to support students with disabilities, Ezra should’ve been exempt from wearing a mask, his mother Emily Nelson said.   Ezra was escorted to the front office where he waited outside for instructions. This would be the first of nearly six hours that he waited outside to be let in.    It was around 8:40 a.m. when Emily received a call from the vice principal recommending Ezra be taken home.    “We had a long conversation because I …