Issue with navigation to XML namespace?

I am not sure whether or not this worked before ReSharper 5.0. I have this in a .xaml file (Silverlight 3):

01 xmlns

:dataInput="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data.Input"
02 <dataInput:Label Content="Fund Name"/>

When I hold the <ctrl> key and move my mouse over <dataInput: and click, ReSharper takes me to the contructor of System.Windows.Controls.Label and not to line 01 where I declared the prefix for the XML namespace. Is this by design?