defaultCVs []TypedConstrainedValue[T],
precedence []Constraints,
cvp, defVal, valOrder, defOrder := findMatchWithConstrainedDefaults(cvs, defaultCVs, precedence)
if defOrder == 0 {
// This is a server bug: all precedence lists must end with no-constraints, and all
// constrained defaults must have a no-constraints value, so we should have gotten a match.