Differences in updated timestamps between Qlik Sense Saas REST endpoints for App

[1emerson]

I'm curious as to whether I'm misinterpreting a response from the Qlik Sense SaaS REST APIs

In the process of adding or deleting an Alternate State, the modified times reported by GET /items and  GET /apps  are different. 

Here is snippet from each for the same app:

GET /items

{ ...snip
 "resourceId": "dca4abdb-0411-4733-b2c9-02dd3ed0586d",
 "updatedAt" : "2022-07-26T15:26:43Z"
  ...snip
}

GET /apps

{ ...snip
 "attributes" : {
    "id": "dca4abdb-0411-4733-b2c9-02dd3ed0586d",
    "modifiedDate" : "2022-07-26T15:37:27.341Z"
  }
  ...snip
}

The response from the /apps endpoint marches in time with the changes to alternate states. However, the /items endpoint lags behind.

I understand that the property names are different. However, the documentation leads me to believe they should have the same semantics.