[Vala] Ternary operator and nullable values in return statements

[Dru Moore <dru dru-id co uk>]

Hi all,

Was surprised to see the following fail to compile with an "error:
Incompatible expressions" in Vala 0.10.0 (simplified test case to
illustrate):

public static int main (string[] args) {
  int? x = test (12);
  return 0;
}

public int? test (int number) {
  return (0 == number) ? null : 1;
}

Am I missing something obvious of misunderstanding something equally clear?

Seems to produce this error whenever the return type is nullable and
null is one of the evaluations of the ternary operator.

best wishes

dru