partcombine

[Ole Schmidt]

dear all,

in the following snippet I use \partcombine and no Triplets are  
displayed. When I % the \partcombine and the second part then  
everything is fine.
Do I miss something?

ole

%%%%%%%%%%%%%%%%%%%%%%%%%
\new Staff  {

\set Staff.printPartCombineTexts = ##f
\time 6/4
\clef "G_8"
\partcombine
\relative c' {  \override TupletBracket #'direction = #up
r4 \times 2/3 { r8 <a e'~>4 } <a e'>2 \times 2/3 { r8 <a e'>4 } <a~  
e'~>4 |
}

\relative c' {  
r1 r4 r8 es,,~ |        
}
}

\version "2.11.36"
%%%%%%%%%%%%%%%%%%%%%%%%

\new Staff   {

\set Staff.printPartCombineTexts = ##f
\time 6/4
\clef "G_8"
%\partcombine
\relative c' {  \override TupletBracket #'direction = #up
r4 \times 2/3 { r8 <a e'~>4 } <a e'>2 \times 2/3 { r8 <a e'>4 } <a~  
e'~>4 |
}

%\relative c' {         
%r1 r4 r8 es,,~ |       
%}
}

%%%%%%%%%%%%%%%%%%%%%%