e.g.

No resources will be modified as part of this refresh; just your stack's state will be. yes
Refreshing (mustang-aws-iam-sandbox):

     Type                         Name                                     Status
     pulumi:pulumi:Stack          mustang-aws-iam-mustang-aws-iam-sandbox
     ├─ aws:iam:Policy            mustang-sandbox-dev
     ├─ aws:iam:Group             mustang-sandbox
     ├─ aws:iam:PolicyAttachment  mustang-sandbox-policy-attachment
     ├─ aws:iam:GroupMembership   mustang-sandbox-dev-group-members
     └─ aws:iam:PolicyAttachment  mustang-sandbox-dev-attachment

there is only one PolicyAttachment, when I try to delete it one will succeed the other will fail