when more than one release is added to ImageSetConfig.yaml the images number is double and incorrect, check the log we could see duplications.

ImageSetConfig.yaml:
=================
[fedora@preserve-fedora-yinzhou test]$ cat /tmp/clid-232.yaml 
apiVersion: mirror.openshift.io/v2alpha1
kind: ImageSetConfiguration
mirror:
  platform:
    channels:
    - name: stable-4.16
      minVersion: 4.16.0
      maxVersion: 4.16.0
    - name: stable-4.15
      minVersion: 4.15.0
      maxVersion: 4.15.0


images to copy 958
cat /tmp/sss |grep 1fd628f40d321354832b0f409d2bf9b89910de27bc6263a4fb5a55c25e160a99
 ✓   178/958 : (8s) quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:1fd628f40d321354832b0f409d2bf9b89910de27bc6263a4fb5a55c25e160a99 
 ✓   945/958 : (8s) quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:1fd628f40d321354832b0f409d2bf9b89910de27bc6263a4fb5a55c25e160a99



 cat /tmp/sss |grep x86_64
 ✓   191/958 : (3s) quay.io/openshift-release-dev/ocp-release:4.16.0-x86_64 
 ✓   383/958 : (2s) quay.io/openshift-release-dev/ocp-release:4.15.0-x86_64 
 ✓   575/958 : (1s) quay.io/openshift-release-dev/ocp-release:4.15.0-x86_64 
 ✓   767/958 : (11s) quay.io/openshift-release-dev/ocp-release:4.15.35-x86_64 
 ✓   958/958 : (5s) quay.io/openshift-release-dev/ocp-release:4.16.0-x86_64

      

    ./oc-mirror version 
WARNING: This version information is deprecated and will be replaced with the output from --short. Use --output=yaml|json to get the full version.
Client Version: version.Info{Major:"", Minor:"", GitVersion:"v0.0.0-unknown-68e608e2", GitCommit:"68e608e2", GitTreeState:"clean", BuildDate:"2024-10-14T05:57:17Z", GoVersion:"go1.23.0", Compiler:"gc", Platform:"linux/amd64"}      

    Always
    

    1.  clone oc-mirror repo, cd oc-mirror, run make build
    2.  Now use the imageSetConfig.yaml present above and run mirror2disk & disk2mirror commands
    3. oc-mirror -c /tmp/clid-232.yaml file://CLID-232 --v2 ; oc-mirror -c /tmp/clid-232.yaml --from file://CLID-232 docker://localhost:5000/clid-232 --dest-tls-verify=false --v2
    

 1. see mirror duplication 

no dup.