@Andreas that MP is now gone, but I suppose it was the one making autopkgtest(1) call autopkgtest-virt-qemu with --qemu-architecture (or --dpkg-architecture) if needed. While that may have worked in practice, it was a hacky solution with downsides, see point 3 of comment 31 above. We went for better documenting how to do cross-arch testing for now; using the autopkgtest-virt-qemu will require specifying the architecture explicitly.
Let us know if I'm mistaken and the MP was about something else.
@Andreas that MP is now gone, but I suppose it was the one making autopkgtest(1) call autopkgtest- virt-qemu with --qemu-architecture (or --dpkg- architecture) if needed. While that may have worked in practice, it was a hacky solution with downsides, see point 3 of comment 31 above. We went for better documenting how to do cross-arch testing for now; using the autopkgtest- virt-qemu will require specifying the architecture explicitly.
Let us know if I'm mistaken and the MP was about something else.