When there are no images for copying or size of images to copy is zero oc-mirror enters into infinite loop as shown below

{code:java}
[fedora@knarra-fedora knarra]$ ./oc-mirror -c /tmp/iscoci.yaml file://test --v2 --cache-dir /test/yinzhou

2025/01/31 17:25:34  [INFO]   : :wave: Hello, welcome to oc-mirror
2025/01/31 17:25:34  [INFO]   : :gear:  setting up the environment for you...
2025/01/31 17:25:34  [INFO]   : :twisted_rightwards_arrows: workflow mode: mirrorToDisk 
2025/01/31 17:25:34  [INFO]   : 🕵  going to discover the necessary images...
2025/01/31 17:25:34  [INFO]   : :mag: collecting release images...
2025/01/31 17:25:34  [INFO]   : :mag: collecting operator images...
 ✗   () Collecting catalog oci:///home/fedora/knarra/openshift-tests-private/redhat-operator-index 
2025/01/31 17:25:34  [WARN]   : [OperatorImageCollector] catalog invalid source name oci:///home/fedora/knarra/openshift-tests-private/redhat-operator-index: lstat /home/fedora/knarra/openshift-tests-private: no such file or directory : SKIPPING
2025/01/31 17:25:34  [INFO]   : :mag: collecting additional images...
2025/01/31 17:25:34  [INFO]   : :mag: collecting helm images...
2025/01/31 17:25:34  [INFO]   : :repeat_one: rebuilding catalogs
2025/01/31 17:25:34  [INFO]   : :rocket: Start copying the images...
207712134 / 0 (7m56s) [------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------] 0 %

    Version-Release number of selected component (if applicable):{code:none}
     4.18
    

     Always
    

    1. Run the command to copy redhat-operator-index as an oci file by using command skopeo copy --all docker://registry.redhat.io/redhat/redhat-operator-index:v4.16 --remove-signatures --insecure-policy oci:///home/fedora/knarra/redhat-operator-index
    2. Now create imageSetConfig.yaml as shown below

{code:java}
kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v2alpha1
mirror:
  operators:
    - catalog: oci:///home/fedora/knarra/openshift-tests-private/redhat-operator-index
      targetCatalog: "ocicatalog73452"
      targetTag: "v16"
      packages:
        - name: cluster-kube-descheduler-operator

    Actual results:{code:none}
    You can see that mirroring enters into infinite loop
    

     Mirroring should fail since there is no such directory and come out.
    

    https://redhat-internal.slack.com/archives/C050P27C71S/p1738344713804659