Line breaks don't work when beams span barlines

[Jesse Engle]

%!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
% Line breaks do not function if the break occurs in between
% beamed notes that span the barline.
%
% Bug found using Lilypond v2.10.33 on Windows XP Pro.
%!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

\version "2.10.33"

\header {
        composer = "Béla Bartók"
        copyright = "Public Domain"
}

\relative c'' {
        \new Staff {
                \clef treble
                \time 4/4
                
                gis8\pp[(^"Allegro" ais cis)] d->( cis4 ais8) gis([ |
                ais d]) cis gis([ ais cis]) d-> cis~[ |
                
                \break
                
                cis] gis[( ais d)] cis gis[( ais d] |
                d) gis,[ ais cis] d->( cis4) gis8([ |
                ais cis)] d4( g8 d cis4) \bar "|."
        }
}