split should, properly, return a cell of two valid treaps
split should, properly, return a cell of two valid treaps

belisarius222/arvo,urbit/urbit,solri/arvo,ngzax/urbit,eglaysher/arvo,urbit/urbit,ngzax/urbit,joemfb/arvo,jfranklin9000/urbit,ngzax/urbit,Fang-/arvo,jfranklin9000/urbit,belisarius222/arvo,urbit/urbit,cgyarvin/arvo,ohAitch/arvo,joemfb/arvo,urbit/urbit,cgyarvin/arvo,ngzax/urbit,jfranklin9000/urbit,jfranklin9000/urbit,ngzax/urbit,ngzax/urbit,ngzax/urbit,ohAitch/arvo,urbit/urbit,urbit/urbit,urbit/urbit,jfranklin9000/urbit,jfranklin9000/urbit,jfranklin9000/urbit