Fix arvo ova order
Fix arvo ova order

Behn is sensitive to the order in which ova are emitted, which was not
correct. Previously, ova emitted first within a single vane activation
were processed as effects last.

ngzax/urbit,belisarius222/arvo,jfranklin9000/urbit,jfranklin9000/urbit,jfranklin9000/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,ngzax/urbit,belisarius222/arvo,urbit/urbit,jfranklin9000/urbit,jfranklin9000/urbit,ngzax/urbit,jfranklin9000/urbit,urbit/urbit,urbit/urbit,jfranklin9000/urbit,urbit/urbit,ngzax/urbit,joemfb/arvo,ngzax/urbit,joemfb/arvo,ngzax/urbit