partcombine and bendAfter don't always play nicely

[Cameron Horsburgh]

Hi folks,

I seem to have run into a problem that has been reported once before:

https://lists.gnu.org/archive/html/lilypond-user/2010-03/msg00263.html

Consider this file:

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

\version "2.16.2"

First={f'2\bendAfter #-5 }

Second={d'2\bendAfter #-5 }

\score{

   <<

      \new Staff

         %\First                                   % ex. 1 Bend typeset

         %\Second                               % ex. 2 Bend typeset

          \partcombine \First \Second     % ex. 3 Bends not typeset

         %\partcombine \Second \First   % ex. 4 Bends typeset

   >>

}

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

If I typeset parts First or Second individually (examples 1 and 2) without using the partcombiner the falls are typeset as expected. Similarly, if I use the partcombiner such that the notes don't share a stem (example 4) the falls are typeset. 

However, if I use the partcombiner so that a stem shared (example 3), the falls are not typeset. This isn't simply an issue with the stem though---the problem persists if I use whole notes. 

Is this a bug in LilyPond or just the user?

--
Cameron Horsburgh