Unable to look up dockerImageLayers information for all ImageStreamTag objects at once

Is there a more efficient way to obtain the dockerImageLayers for all images? Currently with oc get istag --all the dockerImageLayers info is omitted. I get the same result when listing all ImageStreamTags via the REST API as well. Is there a flag I can pass to have the imageLayer data returned in a v1.ImageStreamTagList?

$ oc version
oc v3.11.43
kubernetes v1.11.0+d4cacc0
features: Basic-Auth GSSAPI Kerberos SPNEGO

Server <snip>
openshift v3.11.43
kubernetes v1.11.0+d4cacc0

Steps To Reproduce

oc get istag --all -o yaml

Current Result

Output contains no dockerImageLayers info, it is set to 'null':

apiVersion: v1
items:
- apiVersion: image.openshift.io/v1
  generation: 20
  image:
    dockerImageLayers: null

Expected Result

I'd like to have a way to get the dockerImageLayers for all tags at once. Currently what I have to do is:

1. get the list of istags
2. get data for each one individually to then look up the image layer info

This is really time consuming because we have ~300 images

The report names oc get istag --all -o yaml, the REST API, and v1.ImageStreamTagList; start by comparing list responses with the per-tag responses described in the reproduction. Done means determining and documenting or implementing a supported way for one list request to return dockerImageLayers for all tags, and verifying it against the roughly 300-image case.