ArgoCD UI crashes when Appset Progressive sync is enabled

[OpenGuidou]

Checklist:

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

Describe the bug

Since the migration to ArgoCD 3.1 (3.1.1), the UI crashes when we try to display an Application belonging to an ApplicationSet where the ProgressiveSync is enabled.

It seems to come from this line of code:
https://github.com/argoproj/argo-cd/blob/master/ui/src/app/applications/components/application-status-panel/application-status-panel.tsx#L107

The variable here being undefined:
https://github.com/argoproj/argo-cd/blob/master/ui/src/app/applications/components/application-status-panel/application-status-panel.tsx#L98

And would be introduced by 9675487

When looking at my ApplicationSet, I don't have an applicationStatus field under status.

status:
  conditions:
    - ...
   resources:
     - group: argoproj.io
       version: v1alpha1
       kind: Application
       namespace: argocd
       name: myapp
       status: synced 
       health:
         status: Healthy

When trying to display the Application deploying the ApplicationSet (to check its status), the UI page is empty, without any error.

To Reproduce

• Activate the progressive Sync in the appset:

strategy:
  type: RollingSync

Expected behavior

The Application is correctly displayed

Version

3.1.1

Logs

TypeError: Cannot read properties of undefined (reading 'status')

[swish-astarr]

Plus 1 on this issue. Seeing the same behavior. Attaching screenshot of error.

[todaywasawesome]

Potentially related issues

• ArgoCD UI fails when application is named 'login' #24220
• Error searching for the name of an application #24189