music starting with afterGrace breaks layout

[Klaus Rettinghaus]

Hi there, 

when the music starts with an \afterGrace the layout is broken:

\relative { \time 2/4 \afterGrace g'2 { f8[ g] } f2 }


You have to put something before that to make it work: 
\relative { \time 2/4 s2*0 \afterGrace g'2 { f8[ g] } f2 }

This is present in 2.18.2. and 2.19.55 (Mac). 

Cheers,
Klaus