ArgoCD AVP plugin update not detected

Checklist:

[ X] I've searched in the docs and FAQ for my answer: https://bit.ly/argocd-faq.
[ X] I've included steps to reproduce the bug.
[ X] I've pasted the output of argocd version.

Describe the bug

I had a issue where I updated my argocd-vault-plugin version and I couldn't make ArgoCD see it. Hard refreshing, scaling up and down, removing the redis pod, nothing worked. The version was updated by bumping the version in the initContainer downloading the plugin:

      initContainers:
        - name: download-tools
          image: alpine:3.8
          command: [sh, -c]
          env:
            - name: AVP_VERSION
              value: "1.17.0" <---- UPDATED FROM 1.11.0
          args:
            - >-
              wget -O argocd-vault-plugin https://github.com/argoproj-labs/argocd-vault-plugin/releases/download/v${AVP_VERSION}/argocd-vault-plugin_${AVP_VERSION}_linux_amd64 && chmod +x argocd-vault-plugin && mv argocd-vault-plugin /custom-tools/
          volumeMounts:
            - mountPath: /custom-tools
              name: custom-tools

For debugging I finally added an echo command && echo "Downloaded argocd-vault-plugin version: ${AVP_VERSION}" at the end of the download command and all of the sudden it worked and the version got updated in the argocd-repo-server. This seems very odd to me. It seemed to me like the plugin version was cached somehow, but I couldn't verify that. Maybe it's also related to me running older versions (ArgoCD: v2.4.27 and AVP plugin: 1.11.0). Any ideas? BTW: The plugin is not installed via Sidecontainer, but with ArgoCD-cm. And the plugin is the helm version of the AVP plugin.

To Reproduce

Use above configuration for adding an initContainer to your repo-server and install the plugin.
Verify the installation by logging in to the repo-server pod and running argocd-vault-plugin version
Update the version in the config file
Apply the new configuration
Run the argocd-vault-plugin version again and see that the version didn't get updated.

Expected behavior

Best would be, that the changes get detected, the pod restarts and the new plugin is installed instantly. Having to restart the pod manually would be acceptable too.

Screenshots

Version

v2.4.27

Logs

Paste any relevant application logs here.

argoproj / argo-cd

ArgoCD AVP plugin update not detected #17856