handle uninitialized tasks

[goatsthatcode]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes open-telemetry#1002

Type of change

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• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Ran changes against reproduced issue in repo linked in issue -> https://github.com/goatsthatcode/opentelemetry-instrumentation-celery-example
• Added Unit Test to cover new conditional branch
• Passed existing test suite

Does This PR Require a Core Repo Change?

• Yes. - Link to PR:
• No.

Checklist:

See contributing.md for styleguide, changelog guidelines, and more.

• Followed the style guidelines of this project
• Changelogs have been updated
• Unit tests have been added
• Documentation has been updated

[blumamir]

I am too interested in a fix for this issue.
Thanks for working on a PR. Do you have any estimate on when this could be finalized, and if you plan to upstream it to the contrib repo?

[blumamir]

I think the effect of this return statement is that the span (along with activation) will not be recorded into the CTX_KEY, which means that a later invocation of the _trace_after_publish signal will not be able to retrieve_span thus will not end the span.
Am I missing something?

[goatsthatcode]

so I tested this against the following repo https://github.com/goatsthatcode/opentelemetry-instrumentation-celery-example which was reproducing the disconnected scan use case. As far as I can tell it seems to be nesting and closing spans correctly but I could be missing something as well. I just opened the upstream PR (moved this to my company GitHub since that was the request from my company) here open-telemetry#1052

[goatsthatcode]

hey @blumamir sorry I got really sick this last week, I'm picking this up again now and can get this all wrapped up today/tomorrow. Please let me know if there is anything else missing other than re-running the codegen stuff and ensuring the contributing.md is updated as well.