Under the hood
Useful1 Signal2
Snippet fetches for anchored artifact comments are skipped on carried-over threads and tagged for the server.
What's wrong with this entry?
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What
Fetching the snippet of the element an artifact comment is anchored to is now skipped for threads marked as carried over, and otherwise depends on a helper whose enabled state is decided outside this code. The fetch itself is now tagged so the server can tell these reads apart from other artifact content fetches.
Evidence
artifact_autoreact_anchor_read
Strings lifted out of the shipped bundle, so the claim above can be checked against them.