unexplained shift of a note head when layout-set-staff-size is set to 16.3

[Mojca Miklavec]

Hi,

I'm experiencing a weird behaviour with the note head of g being
shifted to the left when I add
    #(layout-set-staff-size 16.3)

The source code is below and the image is in attachment.

I tried some using other numeric values, but none of those I tried
leads to the same problem.

Without changing the size, the note heads are properly aligned one
below another. I don't understand why this would ever happen unless
there is some floating point arithmetics screwing up things.

I'm using
    GNU LilyPond 2.19.44
on OS X (compiled locally with MacPorts).

\version "2.19.44"
\language "deutsch"

\score {
\new PianoStaff <<
    \new Staff = "staff" <<
      \new Voice = "bass" {
        \clef bass
        \time 3/4
        g,4 <g h d'> <g h d'> |
      }
    >>
  >>
  \layout {
     #(layout-set-staff-size 16.3)
  }
}

Thank you,
    Mojca

(please CC me)

lily-note-head-move.png
Description: PNG image