Bug with \unHideNotes command

[Nick Busigin]

The \unHideNotes command appears to have a bug.  Here's a short lily
program which demonstrates the bug.  A PNG file is attached which shows
the output.

                                      Nick

------ lily program starts below this line ------

% This demonstrates a bug with the \hideNotes and \unHideNotes macros
%
% Bug description: after using these macros:
%   - eighth note stems don't display the flag
%   - crosshead noteheads don't display

#(set-staff-size 20)

\paper  {
  raggedright = ##t
}

\version "2.1.12"

% Macros for changing noteheads to crosshead and back
Xhead    = \property Staff.NoteHead \override #'style = #'cross
NoXhead = \property Staff.NoteHead \revert #'style 

\score {
  \notes \relative c' {
     c e g \hideNotes  a8^\markup { \center <"Hidden" "8th Note" "below"> } 
\unHideNotes  a
     \Xhead g^\markup { "x-heads" }  g g g \NoXhead c^\markup { "no x-heads" }  
d g c,

   } % notes
} %score 

------ lily program ends just above this line ------

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Nick Busigin                                             address@hidden
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