dealing with tabstaff commands when no tabstaff is defined

[hernan gonzalez]

I have a score that uses TabStaff; the voices include here and there
some tab-related commands (eg.   \set TabStaff.minimumFret ). If I
choose to  not output the TabStaff (commenting out that staff from the
main score definition), lilypond get badly  confused with the
tabstaff-related commands it finds.

Test case:
With Lilypond 2.10.23 (Win)

%%%%%%%%%%%%%%%%%%%%%
\version "2.10.1"
frag =  {
e'1  \set TabStaff.minimumFret = #3
g'1  \set TabStaff.minimumFret = #0
e'1
}

\score {
<<
 << \new Staff { \frag } >>
 % << \new TabStaff { \frag } >>  % uncommenting this line it works ok.
>>
}
%%%%%%%%%%%%%%%%%%%%%

Cheers

--
Hernán J. González
http://hjg.com.ar/