I'm creating a report to show a list of pending approvals for work items.

I'm seeing the same thing. To be clear, in your example, User 1 is the only reviewer on Review 1. User 2 is the only reviewer on Review 2. However, when you retrieve a list of reviewers, you get two copies of each.

I'm using the live table com.ibm.team.workitem.WorkItem to get a list of approvals for a specified work item. In this case, the work item has 3 approvals:

...internalId | ...name | ...cumulativeStateIdentifier
_4k8RQXJ | Approval A | ...pending
_643GM2R | Approval B | ...approved
_s3DtMmR | Approval C | ...pending

In the work item, Approval A is for only User 1; Approval B is for only User 2; Approval C is for only User 3.

Then with a nested table, I retrieve the approvers related to that internalApprovalDescriptors.internalId. I see each user attached to that single review, incorrectly:

...name | ...internalId | ...name
User 1 | _4k8RQXJ | Approval A
User 2 | _4k8RQXJ | Approval A
User 3 | _4k8RQXJ | Approval A


Also, when I query the approvals based on a work item itemId, I see multiple references for each reviewer:

itemId | ...approver.name | ...internalId | ...name
_rvb-cH | User 1 | _4k8RQXJ | Approval A
_rvb-cH | User 1 | _643GM2R | Approval B
_rvb-cH | User 1 | _s3DtMmR | Approval C
_rvb-cH | User 2 | _4k8RQXJ | Approval A
_rvb-cH | User 2 | _643GM2R | Approval B
_rvb-cH | User 2 | _s3DtMmR | Approval C
_rvb-cH | User 3 | _4k8RQXJ | Approval A
_rvb-cH | User 3 | _643GM2R | Approval B
_rvb-cH | User 3 | _s3DtMmR | Approval C


This seems to be a bug in the reporting data. Am I missing something? I'll enter a work item unless someone can point out what's going on here.