dev-manual: differing versions of same recipe in different priority layers?
Robert P. J. Day
in the YP dev manual, section 3.1.6, there is a maddeningly vague
"It is possible for a recipe with a lower version number PV in a layer
that has a higher priority to take precedence."
so does it take precedence or not? just saying it's "possible"
doesn't clarify it for the reader.