Policy details are not rendered in the admin portal

After updating the policy from the UI the changes are visible in the configuration JSON but are not rendered in the UI.

Support tested this behavior in multiple admin portal.

Steps to reproduce:

• Go to admin portal
• Go to service configuration/edit apicast configuration
• Add a policy and set its configuration (I tested on Header modification will test on other)
• Press update policy
• Press update the staging environment
• in /apiconfig/services/ {service_id}integration/edit the policy configuration is not updated
  * in /apiconfig/services/{service_id}

  /proxy_configs?environment=staging the configuration is updated

Dev notes

The policy configuration is being updated successfully on the backend. That's why we can see that configuration in Configuration History. Looking at the source code of: /apiconfig/services/service_id/integration/edit page, i can see that saved configuration. It's being assigned to a `var registry` variable. The actual problem is on the FE side, the policy configuration is not being shown correctly.