\balloonGrobText does not work properly with slurs

[David Nalesnik]

The image shows what happens when \balloonGrobText is used with a slur.
 Uncommenting the \override demonstrates a possible workaround. I tried
this code in 2.14.2 with the same result.

\version "2.15.39"

\new Voice \with { \consists "Balloon_engraver" }
\relative c'' {
  % uncommenting the following line is a possible workaround
  %\override BalloonTextItem #'X-extent = ##f
  \balloonGrobText #'Slur #'(0 . 2) \markup { "I'm a slur!" }
  c( d e f)
}

Thanks,
David

balloon-text-bug.png
Description: PNG image