From: utzoo!decvax!harpo!seismo!hao!hplabs!sri-unix!chris.umcp-cs@UDel-Relay
Newsgroups: net.unix-wizards
Title: Bug in VI?
Article-I.D.: sri-arpa.794
Posted: Wed Mar 16 15:47:41 1983
Received: Mon Apr  4 02:11:31 1983

From:  Chris Torek <chris.umcp-cs@UDel-Relay>

I looked in the source for VI, and found an interesting thing:
if you delete the last line, there's a piece of code that SPECIFICALLY
says (it's commented) that it turns off the "modified" flag.
This is in the main for(;;) loop that runs visual mode.  I
don't know if there's any other similar things.