Grace notes: disproportionate stem lengths

When the staff size is set down to 17, a possible bug makes grace notes to suddenly have very long stems. At a size of 18 the problem is not shown. Here is the code and the images that show the problem. #(set-global-staff-size 17) % try also 18 here if you don't want to see the bug \relative c'

polyphony and full rests collision

i just encountered this collision: { \time 3/4 << {g 2. a b c' } \\ {R 2. R R R } >> } this seems to correspond to an older bug http://code.google.com/p/lilypond/issues/detail?id=9&can=1&q=rest%20collision http://c