Question: I'm trying to get a StackReference for our

infra

stack in our `api`stack and using the example code is returning an error:

slug := fmt.Sprintf("foo/%v/%v", ctx.Project(), "infra")
stackRef, err := pulumi.NewStackReference(ctx, slug, nil)
if err != nil {
	return err
}

Returns the following error:

pulumi:pulumi:StackReference (foo/bar/api):
    error: resource 'urn:pulumi:api::bar::pulumi:pulumi:StackReference::foo/bar/api' registered twice (read and read)

Am I missing something here?