2.7.15: defining \headers inside \score

[Graham Percival]

The below code works correctly, but if I uncomment the \score, the 
tagline and copyright no longer gets defined.

HTH,
- Graham
% 2.7.15-1.dmg on osx 10.3.9

%\score{
{c' c c c}
\header{tagline="foo" copyright="bar"}
%}