Paste works differently in XAML files.

I finally found time to play with Silverlight 2.0 Beta 1.  Working with Visual Studio I got so used to be able to cut and paste a row without a selecting a line.  When you work with XAML, Ctrl-C will copy a line without a selecting a line (expected behavior).  However, when you try to paste (Ctrl-V), and your cursor is not at the beginning of the line, the text is inserted were your cursor is, breaking the existing line.  I have no idea why I haven’t notice it before when I worked with WPF and Silverlingt 1.0.  It works as expected with ASPX, HTML, and other files but behaves differently in XAML files.  I wonder why.