[Samba] inherit permissions option - feature or bug?

[R.Brunsendorf]

Hi,

assume two folders (directory A and B) with the sgid-bit (2770) enabled,
owned by different groups and located on the same samba-share with
"inherit permissions" option enabled for the share:

moving some files on a windows machine from directory A to dir B the
group-ownership of the files do not change to the group owning directory
B.

Is this feature or bug? Copying works as expected: group-ownership changes
to group owning dir b.

I've tested with samba 3.5.6

Regards
Rolf Brunsendorf