Issue 1433 in lilypond: \breakDynamicSpan breaks with \break ("bounds of spanner are invalid")

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 1433 by brownian.box: \breakDynamicSpan breaks with \break  
("bounds of spanner are invalid")
http://code.google.com/p/lilypond/issues/detail?id=1433

Reported by Reinhold Kainhofer,
http://lists.gnu.org/archive/html/bug-lilypond/2010-12/msg00030.html :

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The regtest input/regression/dynamics-alignment-breaker.ly for
\breakDynamicSpan works fine, but as soon as there are line breaks during a  
dynamic spanner, it breaks with error messages:

Programmierfehler: Spanner `Hairpin' is not fully contained in parent  
spanner.
Ignoring orphaned part
Programmierfehler: bounds of spanner are invalid


Here is a non-working modification of the regtest:

\version "2.13.23"

\header {
  texidoc = "Hairpins, DynamicTextSpanners and dynamics can be
positioned independently using @code{\\breakDynamicSpan}, which
causes the alignment spanner to end prematurely.
"
}

\relative c' {
  c1^\< \break
  \dimTextDim
  c1_\>
  f,1\p

  \break

  c'1^\<
  \breakDynamicSpan \break
  c1_\>
  \breakDynamicSpan
  f,1\p
}


Cheers,
Reinhold
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