After verifying that with Helmut's fix the package builds fine on amd64 and arm64, I have just uploaded 1.03-3.1 to DELAYED/5. Here's the .debian.tar.xz -- feel free to reschedule or cancel my upload as you see fit.
Cheers, -Hilko
lzop_1.03-3.1.debian.tar.xz
Description: application/xz