kubernetes: kubectl edit brokenness editing volumeMounts (list of struct)

Start with:

       volumeMounts:
        - mountPath: /vol
          name: vol 
        - mountPath: /vol-456                                                                                                                                 
          name: vol 
          subPath: d456

Edit to:

        volumeMounts:
        - mountPath: /vol
          name: vol 
        - mountPath: /vol-d2
          name: vol
          subPath: d2     

Read back what happened:

        volumeMounts:
        - mountPath: /vol-d2
          name: vol 
          subPath: d2
        - mountPath: /vol-456
          name: vol 
          subPath: d456

It synthesized a COMPLETELY WRONG result. At this point, I can not, in good conscience, advocate using kubectl edit.

Can I please have kubectl edit --replace that doesn’t go through patch brokenness. Or better, make that default for 1.5 and make kubectl edit --patch be the broken (but eventually fixed) path.