When schema2 is pushed with 1.10 then a pull is done from 1.6.x or 1.7.x, the DOCKER-CONTENT-DIGEST header verified to match the manifest content. Currently this value is not updated on schema1 conversion sending the digest of the schema2 manifest.

The error in Docker 1.7.1 looks like

ERRO[0005] Error from V2 registry: error verifying manifest: unable to verify manifest digest: registry has "sha256:fea8895f450959fa676bcc1df0611ea93823a735a01205fd8622846041d0c7cf", computed "sha256:d7c4d57978f00c73a82f334c48043f0c0cb049ebb91c85fa560b88ba79ad6e8d"