"David G. Johnston" <david.g.johnston@gmail.com> writes:
> I was under the impression that on both user-facing behavior changes
> grounds, and translation grounds, back-patching changes to existing
> messages is not allowed absent a true factual bug.
"Not allowed" is a bit strong, but yeah we don't usually mess with
translatable strings in back branches without a pretty good reason.
The translators have enough work as it is.
regards, tom lane