Date: Sat, 05 Oct 2013 23:03:14 +0300
From: Dmitry Gutov <address@hidden>
CC: address@hidden, address@hidden
The presence of the `# coding' line is not particularly important.
You are wrong, the presence of the cookie changes a lot how encoding
and decoding works. So it is very important.
Should I file a bug, or..?
Yes, but please include a test case starting with "emacs -Q" and a
file that initially has only ASCII characters, and no 'coding'
cookies. Also, please keep the ruby mode out of the scenario (unless
then the problem goes away).