Hi Richard,
Depends.
As in 'depends as how it was supplied' from the truss manufacturer. recall having seen both square end cuts and bevel end cuts. Without a hanger specified, bevel end cuts to match the hip truss would be the end cut you should see - many are bevel cut from both sides to allow for use on either side of the hip truss.
If the truss engineering specifies a hanger, that hanger may required the truss to be bevel cut, or it may be a hanger which simply supports the square cut end of the truss chord (or even a dual rated hanger - see below, dual rated for square cut or bevel cut).
Go here: (note: place cursor over link, right click, select 'Open in New Window')
http://www.strongtie.com/ftp/catalogs/C ... 9-p078.pdf , you will see a Simpson StrongTie hanger SUR ('R' for right) and SUL ('L' for left) with square cut and bevel cut ends.