The carpenter's daylight sensor does not seem to properly cause block updates for the block that it is placed on when then daylight sensor changes state. It does seem to update properly when clicked on with a carpenters hammer.

In the screenshot below neither of the daylight sensors should be outputting a redstone signal. The daylight sensor on the left have been left-clicked twice with the carpenter's hammer. The redstone dust on top of the cobblestone blocks is not receiving a redstone signal, which is correct. The block below the daylight sensor on the right, however, is still outputting a redstone signal.