ref: Always use structured errors in FindTag RPC
With 453ac57f (ref: Fix Internal
errors in FindTag()
when tag
doesn't exist, 2022-08-01) we have adapted the FindTag RPC to return a
NotFound
error instead of an Internal
one when the tag wasn't found
in order to clearly label this error condition as expected.
This code has been rolled out to production on August 2nd without any observed negative fallout. Remove the feature flag guarding it.
Changelog: changed
Closes #4398 (closed)