Unexpected side-effect of articulate.ly on aftergrace

[Olivier Biot]

Dear LilyPond users,

I just came across a weird interaction between articulate.ly and aftergrace.

If I include "articulate.ly" then beamed aftergrace notes have a tenuto articulation and are not rendered smaller, even though I never called the \articulate macro.

Here's the LilyPond 1.16.1 code for reproducing the issue - comment the include statement to see the difference:

% BEGIN code
\version "2.16.1"

\include "articulate.ly"

theMusic = \new Staff {
  \relative c' {
    \key g \major
    \time 4/4
    \clef "bass"
    c4 \startTrillSpan ( b a \afterGrace g4-2 ) { fis16 [ g ] \stopTrillSpan }        | % 13
    c,1

  }
}

\score {
  \theMusic

  \layout {
    \context {
      \Staff
      \override Fingering #'add-stem-support = ##t
      \override Fingering #'avoid-slur = #'outside
      \override TupletBracket #'bracket-visibility = ##t

    }
  }
}
% END code

Is there a known fix for this problem?

BEst regards,

Olivier