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I found another fun issue today with `aws.autoscaling.Group`. The following property value:

```
            tags: [
                {
                    key: "Name",
                    value: "Vault Server",
                    propagateAtLaunch: true,
                },
            ],
```

gives an error when updating:

```
Previewing update of stack 'vault-test-dev'
Previewing changes:

     Type                                      Name                              Plan          Info
 *   pulumi:pulumi:Stack                       pulumi-vault-test-vault-test-dev  no change     1 error
 ~   ├─ operator-error:aws:vault:VaultServers  algo-vault-servers                update        changes: + physicalStorageTableName,serverCount,ser
 +   │  └─ aws:ec2:PlacementGroup              algo-vault-placement-group        create
 *   └─ global                                 global                            no change     1 error

Diagnostics:
  global: global
    error: aws:autoscaling/group:Group resource 'algo-vault-autoscaling-group' has a problem: tag.0: expected object, got slice

  pulumi:pulumi:Stack: pulumi-vault-test-vault-test-dev
    error: One or more resource validation errors occurred; refusing to proceed

error: an error occurred while advancing the preview
```