Description of problem:

    Some images SHA are missing in logs/mapping.txt mirroing image using oc-mirror v2/v1

Version-Release number of selected component (if applicable):

How reproducible:

• Cu is using J Frog Artifactory.

• Imagesetconfig used:

  kind: ImageSetConfiguration
  apiVersion: mirror.openshift.io/v2alpha1
  mirror:
    platform:
      architectures:
      - amd64
    operators:
      - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.18 
        packages: 
         - name: advanced-cluster-management
           defaultChannel: release-2.14
           channels:
           - name: release-2.14
             maxVersion: v2.14.0
             minVersion: v2.14.0

  The expected images are 60 to be copied and the mapping.txt also has 60 entries. 

But on checking the images in Jfrog we found few Sha are not pointing to a images but list.manifest.json.  
Under this SHA we have multiple other SHA values present which are not present in mapping.txt
 
Cu is expecting this extra SHA value should be also present in mapping.txt [The same issue observed in v1 and v2].

Additional data is provided in drive:
Google DOC

Steps to Reproduce:

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Actual results:

    Missing SHA values when compared to Jfrog registry. 

Expected results:

    The customer expects all these additional SHAs to also appear in mapping.txt

Additional info: