Use the backend-configured model (#12336)
Use the backend-configured model (#12336)

Rather than import the backend Task model directly, use the class that the backend actually uses. This could have been customised, and there is no reason not to use this reference.
Acehaidrey/incubator-airflow,mrkm4ntr/incubator-airflow,bolkedebruin/airflow,nathanielvarona/airflow,danielvdende/incubator-airflow,mistercrunch/airflow,danielvdende/incubator-airflow,DinoCow/airflow,Acehaidrey/incubator-airflow,danielvdende/incubator-airflow,lyft/incubator-airflow,mrkm4ntr/incubator-airflow,apache/airflow,nathanielvarona/airflow,cfei18/incubator-airflow,apache/airflow,Acehaidrey/incubator-airflow,danielvdende/incubator-airflow,nathanielvarona/airflow,mistercrunch/airflow,apache/airflow,mrkm4ntr/incubator-airflow,mrkm4ntr/incubator-airflow,bolkedebruin/airflow,nathanielvarona/airflow,airbnb/airflow,sekikn/incubator-airflow,apache/incubator-airflow,dhuang/incubator-airflow,airbnb/airflow,apache/airflow,Acehaidrey/incubator-airflow,danielvdende/incubator-airflow,apache/airflow,nathanielvarona/airflow,mistercrunch/airflow,sekikn/incubator-airflow,bolkedebruin/airflow,dhuang/incubator-airflow,cfei18/incubator-airflow,dhuang/incubator-airflow,DinoCow/airflow,apache/incubator-airflow,Acehaidrey/incubator-airflow,airbnb/airflow,mistercrunch/airflow,DinoCow/airflow,cfei18/incubator-airflow,cfei18/incubator-airflow,bolkedebruin/airflow,apache/airflow,bolkedebruin/airflow,lyft/incubator-airflow,airbnb/airflow,cfei18/incubator-airflow,Acehaidrey/incubator-airflow,lyft/incubator-airflow,DinoCow/airflow,cfei18/incubator-airflow,apache/incubator-airflow,nathanielvarona/airflow,lyft/incubator-airflow,sekikn/incubator-airflow,apache/incubator-airflow,danielvdende/incubator-airflow,dhuang/incubator-airflow,sekikn/incubator-airflow