A deadly H9N2 influenza in Wuhan, winter 2018-19?

Did the fine researchers of the Wuhan Institute of Virology make up an avian flu outbreak??? (January 2019)

Original paper (link below) was retracted. The 16 H9N2 sequences submitted to GeneBank were removed. The outbreak description is nearly identical to that of another outbreak in Wuhan a year later, Jan 2020. What happened there? If there was no outbreak, what does it say about the quality of China's bio research, and if there was a H9N2 outbreak in Wuhan, when was it contained, if at all?? And where did the flu virus disappear anyway???

Paper citation: Dong, Xuan, et al. "RETRACTED ARTICLE: Human H9N2 Avian influenza infection: Epidemiological and clinical characterization of 16 cases in China." Virologica Sinica (2020): 1.