[BUG] Reference tasks cannot be mapped over

[samhita-alla]

Describe the bug

When a reference task is mapped over in a workflow, it's resulting in Failed with Unknown Exception <class 'AttributeError'> Reason: 'ReferenceTask' object has no attribute '_task_function' error.

Expected behavior

This operation shouldn't result in any errors.

Additional context to reproduce

1. Clone the flytesnacks repo
2. Register the decorating tasks example
3. Trigger the following code by specifying the registered version of task t1

from flytekit import map_task, reference_task, workflow


@reference_task(
    project="flytesnacks",
    domain="development",
    name="core.flyte_basics.decorating_tasks.t1",
    version="<version>",
)
def t1(x: int) -> int:
    ...


@workflow
def wf(x: list[int] = [3, 2]):
    return map_task(t1)(x=x)

Screenshots

No response

Are you sure this issue hasn't been raised already?

• [X] Yes

Have you read the Code of Conduct?

• [X] Yes

[nhattab303]

Any updates on this ? Facing the same issue

[eapolinario]

I did an initial investigation for this and unfortunately reached the conclusion that supporting reference tasks in map tasks would take a non-negligible amount of work.

[github-actions[bot]]

Hello 👋, this issue has been inactive for over 9 months. To help maintain a clean and focused backlog, we'll be marking this issue as stale and will engage on it to decide if it is still applicable. Thank you for your contribution and understanding! 🙏