To Stefan Monnier:

When applying my erc-match patch, you broke another part:

=== modified file 'lisp/erc/erc-match.el'
--- lisp/erc/erc-match.el       2013-01-02 16:13:04 +0000
+++ lisp/erc/erc-match.el       2013-02-11 22:53:36 +0000
@@ -447,16 +447,24 @@
                        (nth 0 (erc-parse-user nickuserhost))))
         (old-pt (point))
         (nick-beg (and nickname
-                       (re-search-forward (regexp-quote nickname)
+                       (re-search-forward "\\(\\* \\)?"(regexp-quote nickname)
                                           (point-max) t)

It's not clear what was intended, so I cannot suggest a fix (aside from
simply reverting).

I also submitted a patch that supersedes my patch, which actually caused
an out-of-range error for every non-ACTION message.  Obviously worse
than truncating ACTION messages.  Here's my patch fix: