Block Selection with rowspan grid

Hi, I was wondering if block selection works in a grid with rowspans?

Dblock selection on all of the contents in the row-spanned grid causes IE to give this error:

_cellType is null or not an object.

Also, when trying to copy parts of the grid that are selected, the values do not repeat. Is there a good work-around to this? The only alternative I could think of would be to keep a grid without rowspans around, so that the values could be copied to the clipboard.

Unfortunately we cannot reproduce this issue locally. Could you please provide any kind of sample where we can reconstruct this issue locally?