How to copy MXF files that span 2 cards

I understand that the work flow for importing P2 media is to copy the entire directory to your media drive and the clips should then show up in media browser as actual clips rather than individual MXF files. I have had success doing this in the past. I believe there was a bug that prevented this from working for a revision or two and was fixed very recently (correct me if I'm wrong) so that this workflow should now be working. 

HOWEVER, we have a Panasonic camera that uses two P2 cards. If one card runs out of space while recording, it will automatically switch over to the other card and continue recording. SO, we often have media files spanning 2 cards. According to this support document (last paragraph): "If the group of spanned clips itself spans two P2 or XDCAM EX cards, copy the full directory trees from them both to same-level folders on the hard disk before importing." 

THE QUESTION IS how do you do that? If you have 2 identical directory sctructures, copying the second one to the save level will overwrite the first. What I was doing was to create 2 directories labelled "F" and "G" and copying the CONTENTS folders (as well as LASTCLIP.TXT) into each of them. I also tried merging them all the MXF files into the same contents/video folder, but niether of those schemes worked. When I go to import, I can only see the individual MXF files, not the complete media icon.

Am I doing this wrong? Or is the bug that prevented this from working still afoot? Or what?