[Lilypond-auto] Issue 3385 in lilypond: Ottava with cross-staff messes up beams since 2.17.19

[lilypond]

Status: New
Owner: ----

New issue 3385 by address@hidden: Ottava with cross-staff   
messes up beams since 2.17.19
http://code.google.com/p/lilypond/issues/detail?id=3385

Dominic reports in  
http://lilypond.1069038.n5.nabble.com/2-17-19-Ottava-with-cross-staff-messed-up-beams-tp146480.html


%  On the stable 2.16.2, this is fine, but on the unstable 2.17.19,
%  the following short example results in extremely corrupted /
%  messed up stems. Bug?


chUp = \change Staff = "upper"
chDn = \change Staff = "lower"
\new PianoStaff
<<
        \new Staff = "upper"
                { \relative c' { \ottava #1 c'8 \chDn c \chUp c \chDn c \chUp 
c2 } }
        \new Staff = "lower" { s1 }


I've found that starting with 2.17.14 the log warns about an error:

programming error: Grob direction requested while calculation in progress.
continuing, cross fingers

but the output still looks ok as in previous versions.

with 2.17.19 the output is weird



Attachments:
        test2.17.19.preview.png  2.8 KB
        test2.17.18.preview.png  2.9 KB

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