Comment 24 for bug 1535458

> I see, so I should use the "C" locale,
> as that commonly means "I don't care about the encoding".

That is JUST A WORKAROUND that seems to work, but that shouldn't be needed. This is NOT the expected behavior.

> I understand that grep works in another way now.

Yeah, a wrong one because it has a bug. Which by the way appears to be fixed upstream.

Note that grepping an ISO-8859-file (containing non-ascii characters) with an UTF-8 locale will usually *but not always* reproduce the issue, so the behavior is not even consistent or predictable.

> one could say that it is more picky, but one could also consider this an improvement,

NOPE NOPE NOPE

> that the file warns, that the file is somehow 'non-standard'

If the intent was to warn about something, the program would print a warning (and then do its job correctly). Treating the file as BINARY, when it is not, is not a sane way to "warn" about anything.