Wrong MultiMeasureRest-glyphs?

[Thomas Morley]

With measures longer than two whole notes LilyPond chooses different
glyphs for MultiMeasureRest.

\version "2.17.12"

\new Staff {
  \compressFullBarRests

  \time 7/4
  R1*7/4
  R1*7/4*2

  \break

  \time 9/4
  R1*9/4
  R1*9/4*2
  \break

  \time 18/4
  R1*18/4
  R1*18/4*2
}

Discussion on the user-list:
http://lilypond.1069038.n5.nabble.com/Glyph-for-longer-MultiMeasureRest-td141438.html

According to Gould LilyPond's default seems to be correct.
Werner objects.

At least there's need for discussion, I think.

Attached an image showing "LilyPond's default" vs "Correct?"


Regards,
  Harm

mmr-02.png
Description: PNG image