Misplaced tie

[Trevor Daniels]

In the chords below, the tie between the g's is misplaced when the 
direction is chosen automatically, but is correct when the direction
is manually specified.

\version "2.17.15"
\relative c' {
  % The tie between the g's is misplaced
  <c e g b>~ <c e g>

  % Manually forcing ties up or down or adding another note gives a correct 
placement
  <c e g b>^~ <c e g>
  <c e g b>_~ <c e g>
  <c e g b>~ <c e g c>
}

See also http://code.google.com/p/lilypond/issues/detail?id=962
and http://code.google.com/p/lilypond/issues/detail?id=904
and http://code.google.com/p/lilypond/issues/detail?id=141

Trevor