fix(experiments): transient errors shouldn't leave trial hung #8352
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Description
handleAllocationExit
has an unspoken invariant that it must further the state of the trial somehow, either by closing it or trying to continue it. This change fixes bugs where this wasn't upheld and make it clearer in the function comment.Test Plan
edit the code so that one of the modified paths always returns an error and make sure the trial ends up errored, not hung.
Commentary (optional)
Checklist
docs/release-notes/
.See Release Note for details.
Ticket