<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by pegasus8228:
you will get 1 boarding pass, and the 'great circle' miles.
in fact, i once tried to book this as 2 segments and get 2 BPs (hence 1 more segment and a bit more miles). the cx agent refused to do it for me</font>
What you need to do there is to book one sector with the actual flight number and the other sector under the codeshare flight number - worked for me when I went MEL (BA) SIN (QF) LHR on the same metal.
Dave