Re: Issue 1442 in lilypond: staff-staff padding all appears after the last nonstaff

[lilypond]

Comment #3 on issue 1442 by address@hidden: staff-staff padding all  
appears after the last nonstaff
http://code.google.com/p/lilypond/issues/detail?id=1442

A closely related symptom that could be helpful for debugging, even though  
it is not the same issue.

If there are several Dynamics lines below a staff, and if the line(s)  
closest to the staff are empty for a whole system, then the first non-empty  
Dynamics is placed to allow *twice* the requested minimum-distance from the  
staff.

\version "2.13.43"
\score { <<
  \new Staff { s1*3 }
  \new Dynamics { s1\mp \break s1  \break s1\mp }
  \new Dynamics { s1\sustainOn s\sustainOn s\sustainOn }
  %{%} >>
  % Non-essential override to show the extra space varies with
  % minimum-distance (and indepenent of padding)
  \layout { \context { \Dynamics
   \override VerticalAxisGroup #'nonstaff-relatedstaff-spacing  
#'minimum-distance = #5
}}}

Fortunately, default Dynamics have zero minimum-distance to their parent  
staff.  The analogous situation with Lyrics (which has a minimum-distance  
by default) does not show the effect.
(The only way I could see the double-distance with Lyrics was to put them  
between Piano staves and leave in place the "Keep_alive_together_engraver".)