We digressed a bit from the original thread topic though 😆 About clone_base_task=False .

I ended up using task_overrides for every change, and this way I only need 2 tasks (a base task and a step task, thus I use clone_base_task=True and it works as expected - yay!)

So, the problem I described in the beginning can be reproduced only this way:

• to have a base task
• export_data - modify - import_data - have a second task
• pass the second task to add_step with clone_base_task=False . Then the second task is cloned and we get a third task