Ok. Something is definitely not right here.
Back when I worked through all the scope/noscope ucase/lcase issues, I thought I tested everything.
But I see that linefeed isn't working as it's supposed to.
Also the experimental v3f packs and the new Combined Kit (ock) packs are also doing even more of the wrong thing:
In NOSCOPE mode they're not delimiting the output characters with backslashes to show what's wrong,
in addition to not giving back the line we should see with linefeed.
I'm not sure when I'll have time to dig in further, but its definitely wrong.