rooo - 10:27 am on Aug 16, 2012 (gmt 0)
I'm seeing something similar too. Months ago we added a robots.txt that blocks everything on a .co.uk domain. Bit stranger though is that we 301 redirect the .co.uk domain to a .com domain.
Seems weird to even show the result - they seem to be ignoring the 301 in this scenario.