Cue Stem Alignment of Merged Noteheads

[Jay Anderson]

\version "2.16.0"

mus = \relative c'
{
  c8 d e f g a b c
}

\score
{
  \new Staff
  <<
    \new CueVoice
    {
      \voiceOne
      % Workaround:
      %\override Stem #'X-offset = #1.22
      \mus
    }
    \new Voice
    {
      \voiceTwo
      \mus
    }
  >>
}

The cue stems look like they're coming out of the middle of the shared
notehead. It's easy to manually push the stems over (in practice this needs
to be done on a note-by-note basis), but it'd be nice if this happened
automatically.

Thanks.

-----Jay