This is caused by the Text::Autoformat module. It somethimes tries to be too clever and attempts to re-number lists... a bit like Microsoft and their annoying 'helpful' Word functions.
You can disable wordwrap on incoming articles by commenting out the following lines in newnews.pl
Code:
if ($body =~ /\w/o) {
$body = autoformat $body, {right=>$config{article_wrap},all=>1};
}
These appear twice. Once on or around line 446 and again around line 553.
The new version doesn't have this problem.