I think I saw somwhere last week a shot of the Italian KC-767 refuelling from a KC-135
Are you sure it wasn't Boeing's picture of one KC-767 refuelling from another?
The KC-30A has also been successfully practising contacts against the A310MRTT; the A310MRTT has been refuelling fighters for several years now and the KC-30A has also conducted wet offloads.
Whereas, unless I'm very much mistaken, the KC-767 has yet to refuel
anything except from the boom.