Filter Approvals = myPending() shows what is already approved when pending other approvers

Summary

When using the JQL Approvals = myPending, it shows tickets that are already approved by current user.
The ticket only disappears from the list if all approvers approved the request.

Steps to Reproduce

1. In the workflow for Approval request type, on the approval step - set "Consider approved after - All approvals"
2. Create a ticket that approval is needed for more than one approval.
3. One user approves the ticket.
4. Search for Approvals = myPending() (when logged as user) or Approvals = pendingBy(user.name).

Expected Results

The results show only what is pending for the user who is searching Approvals = myPending(), even though it's necessary approval from another user.

Actual Results

The results show the tickets that are already approved by the current user because the another user hasn't approved yet.

Notes

It was reproducible on another instance.
This issue also happens on the Customer Portal > Requests > Approvals