Hi, I've noticed there's linux-image-4.7.0-0.bpo.1-amd64-unsigned available in jessie-backports, and it provides linux-image-4.7.0-0.bpo.1-amd64. So, since 4.7 is already there in jessie-backports, linux-image-amd64 can be just updated to depend on it.
Same issue and same solution apply to linux-headers-amd64 metapackage and 4.7 headers packages.
