Here's a subtle bug:

1) Open a new acme session
2) Copy a chunk of text from this email in Mac OS X Mail
3) Paste it in Acme
4) Copy just this line of text from Mac OS X Mail
5) Paste it somwhere else

It seems as if each successive paste isn't truncating /dev/snarf
properly, so that we wind up with juxtaposed text that's hard to work

I have something to finish now, but I'll find and hopefully fix the
source of this bug tomorrow.