You'll notice
Useful3 Signal2
A publish that fails partway now tells you the artifact was already created, with its slug.
What's wrong with this entry?
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What
When publishing creates a brand new artifact and a later step fails, the failure result now carries the slug and version of what was created, so you are not left assuming nothing exists. It is only filled in when the publish had no existing artifact and the create step succeeded first.
Evidence
created: { slug: w, version: U }
Strings lifted out of the shipped bundle, so the claim above can be checked against them.