[bug] spacing-spanner properties

[Juergen Reuter]

As of current CVS, tuning grob SpacingSpanner's properties 
shortest-duration-space and spacing-increment gives weird results for 
horizontal spacing.  For example, with the below ly file, the first two lines 
are widely spaced, while the remaining lines are tightly packed.

Greetings,
Juergen

\version "2.7.17"

\score {
  \transpose c c' {
    c1 d e f g a b a g f e d
    c d e f g a b a g f e d
    c d e f g a b a g f e d
    c d e f g a b a g f e d
    c d e f g a b a g f e d
    c d e f g a b a g f e d
  }
}


\layout {
  \context {
    \Score
    timing = ##f
    barAlways = ##t
    \override SpacingSpanner #'shortest-duration-space = #9
    \override SpacingSpanner #'spacing-increment = #9
  }
  indent = 0
}

spacing-spanner.png
Description: PNG image