template_ext in task attributes shows incorrect value

[BasPH]

Apache Airflow version

2.1.3 (latest released)

Operating System

Debian Buster

Versions of Apache Airflow Providers

No response

Deployment

Managed Services (Astronomer, Composer, MWAA etc.)

Deployment details

Running quay.io/astronomer/ap-airflow:2.1.3-buster Docker image

What happened

In the task attributes view of a BashOperator, the template_ext row doesn't show any value, while I would expect to see ('.sh', '.bash').

What you expected to happen

Expect to see correct template_ext value

How to reproduce

Run a BashOperator and browse to Instance Details --> scroll down to template_ext row

Anything else

Spent a little time trying to figure out what could be the reason, but haven't found the problem yet. Therefore created issue to track.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[uranusjr]

Not sure why this happens, but feel free to work on this!

[BasPH]

If only I knew the reason😅 Will dig a little deeper today

[BasPH]

Turns out template_ext is never serialized into the DB. Preparing PR.