Drawing a rectangle doesn't default to CMYK color mode

Create a new document in X5.

Choose CMYK as the "Primary Color Mode" in the "Create a new document" dialog box.

Draw a rectangle.

The Eyedropper Tool tells me it is RGB 0, 0, 0.

Shouldn't it be CMYK 0, 0, 0,100?

Is there a simple way to fix this to default to CMYK?