Group editing & lanes

Following issue (could not find it reported, yet):
Two tracks are in a folder with enabled group editing. Track 1 has lane view on, track two has lane view off. Both tracks have 3 lanes. Now I move an event from Track 1, lane 2 to Track 1, lane 1.
My expected behavior for track 2 would be that the corresponding event is moved from track 2, lane 2 to track 2, lane 1. Instead it is moved to track 1, lane 3.
Happens to me with Cubase 6.0.3 32bit, Win 7 64 bit.
Is this a bug?