alternative starting at half-measure

[Bertalan Fodor]

I tried the following:

\time 4/4
\repeat { c d }
\alternative { {e f} {g a | g f e c} }

The seconda volta tells bar check warning and prints a barline to g f | e c
So to have it work as expected I had to put \partial 2 to the first bar of
the seconda volta.

\alternative { {e f} {\partial 2 g a | g f e c} }

I think that this is a bug (2.2.0).

Thanks,

Bert