[Nickle] Should I expect this?

[Bart Massey]

  > typedef union {int x, y;} u;
  > u v = {x = 3};
  ->     u v = { x = 3 };
  <stdin>:2: Initializer type mismatch, type 'union { int x; int y; }'

It seems like this ought to work to me.  Am I confused?

	Bart