The NYPD cop charged with spying for China raised alarms at a Tibetan New Year party that he attended in uniform — and where he was photographed sitting next to US Rep. Alexandria Ocasio-Cortez, The Post has learned. A former president of the Tibetan Community of NY & NJ said the group became suspicious of Officer Baimadajie Angwang, 33, and “cut off the relationship” with him following the event at its community center in Woodside, Queens, last year. Sonam Gyephel declined to say precisely what alerted members to the since-disgraced cop, who’s accused of gathering intelligence on fellow Tibetans at...