mozilla / mozilla/experimenter

Cancelling "request launch without preview" yields cryptic error

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Dominant language
Python
Stars
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Forks
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Avg merge
1d 8h
Merged PRs (30d)
212

Description

STR:

  1. Request launch without preview
  2. Cancel launch

ER: No error

AR:

 That action could not be completed because the experiment has changed. See more

    Cannot perform this action: experiment must be in state (NimbusConstants.Status.DRAFT, NimbusConstants.Status.LIVE, NimbusConstants.PublishStatus.REVIEW, False), but is currently in state ('Draft', None, 'Idle', False).

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Research direction

No file or test is named. Start by reproducing the request-launch-without-preview and cancel flow, then trace the cancellation path and experiment state validation that produces the error. Done means cancelling returns without an error and the regression is covered by an appropriate test.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
55/100

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