[I] Undesired ".execute cannot be called outside TaskInstance!" warning [airflow]

[via GitHub]

zhaow-de opened a new issue, #39413:
URL: https://github.com/apache/airflow/issues/39413

   ### Apache Airflow version
   
   2.9.0
   
   ### If "Other Airflow 2 version" selected, which one?
   
   _No response_
   
   ### What happened?
   
   Decorated operators using the classic API trigger warning message 
"<SomeOperator>.execute cannot be called outside TaskInstance!"
   
   ### What you think should happen instead?
   
   PR https://github.com/apache/airflow/pull/37937 introduced a new check to 
avoid the mixed usage of classic and decorated operators. Because a boundary 
condition of checking the decorators is missing, the operators cannot be 
decorated if a DAG uses the classic API.
   
   Hopefully, the check should only be triggered if the operator is decorated 
with `airflow.decorators.task`
   
   ### How to reproduce
   
   Run the DAG below:
   ```python
   from airflow import DAG
   from airflow.operators.python import PythonOperator
   
   
   def deco(cls):
       orig_init = cls.__init__
   
       def new_init(self, *args, default_args=None, **kwargs):
           orig_init(self, *args, **kwargs)
           self.default_args = default_args
   
       cls.__init__ = cls._apply_defaults(new_init)
       return cls
   
   
   @deco
   class AlloyPythonOperator(PythonOperator):
       def execute(self, context):
           super().execute(context)
   
   
   def no_ops():
       pass
   
   
   with DAG(
       dag_id="test-dag",
       catchup=False,
   ):
       AlloyPythonOperator(
           task_id="trigger-execute",
           python_callable=no_ops,
       )
   ```
   
   ### Operating System
   
   Ubuntu 22.04 LTS, but the issue is OS independant
   
   ### Versions of Apache Airflow Providers
   
   core
   
   ### Deployment
   
   Other Docker-based deployment
   
   ### Deployment details
   
   _No response_
   
   ### Anything else?
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
   


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