Pulumi doesn't respect provider generated resource id when updating

reproducing.md

Steps to reproduce

1. Write code and run pulumi up

Write code

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := sakuracloud.NewServer(ctx, "from-pulumi-with-go", &sakuracloud.ServerArgs{
			Name:   "from-pulumi-with-go",
			Memory: 1,
		})
		if err != nil {
			return err
		}
		return nil
	})
}

run pulumi up

$ pulumi up -y
Previewing update (dev):

     Type                         Name                 Plan       
 +   pulumi:pulumi:Stack          minimum-go-dev       create     
 +   └─ sakuracloud:index:Server  from-pulumi-with-go  create     
 
Resources:
    + 2 to create

Updating (dev):

     Type                         Name                 Status      
 +   pulumi:pulumi:Stack          minimum-go-dev       created     
 +   └─ sakuracloud:index:Server  from-pulumi-with-go  created     
 
Resources:
    + 2 created

Duration: 25s

pulumi stack export

$ pulumi stack export
{
    "version": 3,
    "deployment": {
        "manifest": {
            "time": "2020-01-09T16:02:43.506274+09:00",
            "magic": "xxxxxx",
            "version": "v1.8.1"
        },
        "secrets_providers": {
            "type": "passphrase",
            "state": {
                "salt": "xxx"
            }
        },
        "resources": [
            {
                "urn": "urn:pulumi:dev::minimum-go::pulumi:pulumi:Stack::minimum-go-dev",
                "custom": false,
                "type": "pulumi:pulumi:Stack"
            },
            {
                "urn": "urn:pulumi:dev::minimum-go::pulumi:providers:sakuracloud::default",
                "custom": true,
                "id": "a20fb9d7-9bef-4047-8b8b-45a932a23472",
                "type": "pulumi:providers:sakuracloud"
            },
            {
                "urn": "urn:pulumi:dev::minimum-go::sakuracloud:index/server:Server::from-pulumi-with-go",
                "custom": true,
                "id": "1",
                "type": "sakuracloud:index/server:Server",
                "inputs": {
                    "memory": 1,
                    "name": "from-pulumi-with-go"
                },
                "outputs": {
                    "__meta": "{\"schema_version\":\"1\"}",
                    "id": "1",
                    "memory": 1,
                    "name": "from-pulumi-with-go"
                },
                "parent": "urn:pulumi:dev::minimum-go::pulumi:pulumi:Stack::minimum-go-dev",
                "provider": "urn:pulumi:dev::minimum-go::pulumi:providers:sakuracloud::default::a20fb9d7-9bef-4047-8b8b-45a932a23472",
                "propertyDependencies": {
                    "memory": null,
                    "name": null
                }
            }
        ]
    }
}

2. Update the codes

Update code

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := sakuracloud.NewServer(ctx, "from-pulumi-with-go", &sakuracloud.ServerArgs{
			Name:   "from-pulumi-with-go",
			Memory: 2, // If this field is updated, the resource ID will be changed.
		})
		if err != nil {
			return err
		}
		return nil
	})
}

run pulumi up

pulumi up -y
Previewing update (dev):

     Type                         Name                 Plan       Info
     pulumi:pulumi:Stack          minimum-go-dev                  
 ~   └─ sakuracloud:index:Server  from-pulumi-with-go  update     [diff: ~memory]
 
Resources:
    ~ 1 to update
    1 unchanged

Updating (dev):

     Type                         Name                 Status      Info
     pulumi:pulumi:Stack          minimum-go-dev                   3 messages
 ~   └─ sakuracloud:index:Server  from-pulumi-with-go  updated     [diff: ~memory]
  
Resources:
    ~ 1 updated
    1 unchanged

Duration: 4s

Permalink: file:///Users/kaz/.pulumi/stacks/dev.json

pulumi stack export

$ pulumi stack export
{
    "version": 3,
    "deployment": {
        "manifest": {
            "time": "2020-01-09T16:24:04.225325+09:00",
            "magic": "xxx",
            "version": "v1.8.1"
        },
        "secrets_providers": {
            "type": "passphrase",
            "state": {
                "salt": "xxx"
            }
        },
        "resources": [
            {
                "urn": "urn:pulumi:dev::minimum-go::pulumi:pulumi:Stack::minimum-go-dev",
                "custom": false,
                "type": "pulumi:pulumi:Stack"
            },
            {
                "urn": "urn:pulumi:dev::minimum-go::pulumi:providers:sakuracloud::default",
                "custom": true,
                "id": "a20fb9d7-9bef-4047-8b8b-45a932a23472",
                "type": "pulumi:providers:sakuracloud"
            },
            {
                "urn": "urn:pulumi:dev::minimum-go::sakuracloud:index/server:Server::from-pulumi-with-go",
                "custom": true,
                "id": "1",
                "type": "sakuracloud:index/server:Server",
                "inputs": {
                    "memory": 2,
                    "name": "from-pulumi-with-go"
                },
                "outputs": {
                    "__meta": "{\"schema_version\":\"1\"}",
                    "id": "2",
                    "memory": 2,
                    "name": "from-pulumi-with-go"
                },
                "parent": "urn:pulumi:dev::minimum-go::pulumi:pulumi:Stack::minimum-go-dev",
                "provider": "urn:pulumi:dev::minimum-go::pulumi:providers:sakuracloud::default::a20fb9d7-9bef-4047-8b8b-45a932a23472",
                "propertyDependencies": {
                    "memory": null,
                    "name": null
                }
            }
        ]
    }
}

Note: The resource has "id":"1", but the Terraform provider returns "id":"2".

3. re-update code and run pulumi up

update code

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := sakuracloud.NewServer(ctx, "from-pulumi-with-go", &sakuracloud.ServerArgs{
			Name:   "from-pulumi-with-go",
			Memory: 4,
		})
		if err != nil {
			return err
		}
		return nil
	})
}

run pulumi up

$ pulumi up -y
Previewing update (dev):

     Type                         Name                 Plan       Info
     pulumi:pulumi:Stack          minimum-go-dev                  
 ~   └─ sakuracloud:index:Server  from-pulumi-with-go  update     [diff: ~memory]
 
Resources:
    ~ 1 to update
    1 unchanged

Updating (dev):

     Type                         Name                 Status                  Info
     pulumi:pulumi:Stack          minimum-go-dev       **failed**              1 error; 3 messages
 ~   └─ sakuracloud:index:Server  from-pulumi-with-go  **updating failed**     [diff: ~memory]; 1 error
 
Diagnostics:
  pulumi:pulumi:Stack (minimum-go-dev):
    error: update failed
 
  sakuracloud:index:Server (from-pulumi-with-go):
    error: 1 error occurred:
    	* updating urn:pulumi:dev::minimum-go::sakuracloud:index/server:Server::from-pulumi-with-go: Couldn't find SakuraCloud Server resource: Error in response: &sacloud.ResultErrorValue{IsFatal:true, Serial:"xxx", Status:"404 Not Found", ErrorCode:"not_found", ErrorMessage:"xxx"}
 
Resources:
    1 unchanged

Duration: 1s