incorrect skyline (beam, \changeStaff)

[Malte Meyn]

Hi list,

the following code produces an incorrect skyline for the "rh" staff. It 
includes the noteheads but not the stems and beam. This happens only 
with certain rhythms (for example, 8. 16 in the "lh" staff produces a 
correct skyline in the "rh" staff).

\version "2.19.40" % also 2.18.2, 2.16.2, 2.14.2

#(ly:set-option 'debug-skylines #t)

<<
  \new Staff = "rh" s2.
  \new Staff = "lh" {
    d'8 f''
    \change Staff = "rh"
    d'8. f''16
    \change Staff = "lh"
    d'4
  }
>>

skyline-bug.png
Description: PNG image