You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
In DevelopmentKind: in v2.1.248,
In DevelopmentSection of the release
What
The check for whether a publish targets an instance of an artifact type no longer requires the session's types flag or a tracked file list. It now says yes if the file was created from a type, or if its frame URL parses as an artifact slug at all.
Evidence
createdFromType
Strings lifted out of the shipped bundle, so the claim above can be checked against them.