the bug with 3.23.
ChangeSet@1.1416.113.1, 2003-03-22 15:22:59+01:00, guilhem@mysql.com
  Fix for #178  Replicating INSERT VALUES(USER()) crashes (SEGV) the slave
      Now it does not SEGV, but USER() is still badly replicated
      (it is replicated to ""), which is a lower priority bug.