Possible bug: do() ignores extra bind params

[Sam Tregar]

Hey guys.  This one has bitten me one too many times.  Given this
table:

  CREATE TABLE foo (
     foo_id INT,
     bar    VARCHAR(255)
  );

This prepare() and execute() produces a very helpful warning:

   my $sth = $dbh->prepare("INSERT INTO foo VALUES (?,?)");
   $sth->execute(1, "test 1", "too many");'

Specifically:

   DBD::mysql::st execute failed: called with 3 bind variables when 2 are
   needed

However, this do() call doesn't:

   $dbh->do("INSERT INTO foo VALUES (?,?)", undef,
            1, "test 1", "too many");

Do you agree this is a bug?  Any ideas about where I should look first
to fix it (DBI or DBD::mysql, for example)?

Thanks,
-sam

PS: DBI v1.46, DBD::mysql v2.90004.  My appologies if this is fixed
already in a later version.