container app deployment does not preserve KeyVault secrets

[Wei Lim]

Container app deployment does not preserve KeyVault secrets.

To reproduce:

1. Set a container app secret referencing a KeyVault
2. Run azd deploy
3. Check container app secret.

Expected:
Secret should remain unchanged.

Actual:
The secret is no longer referencing a KeyVault. It lost its properties keyVaultUrl and identity.

Before:

{
  "value": [
    {
      "identity": "<identity>",
      "keyVaultUrl": "<keyvault endpoint>",
      "name": "secret-keyault",
      "value": "somevalue"
    }
  ]
}

After:

{
  "value": [
    {
      "name": "secret-keyault",
      "value": "somevalue"
    }
  ]
}

Will have a quick fix for this soon.