[JIRAALIGN-1699] Backlog: Deleted defects shouldn't display in the Unassigned section

Issue Summary

When users are deleting the Defects to the recycle bin - the Defects still show up in the unassigned section of the Backlog

Steps to Reproduce

There should be 2 defects in the system. Defects should belong to Program1, Team1, PI1. Defect1 should belong to Sprint1, Defect2 should belong to Unassigned Backlog.

1. Delete both defects to the recycle bin
2. Open Defect Backlog
3. Select Team1 and PI1 in the context menu
4. Select Unassigned backlog in the 'Selected Sprints' section
5. Expand the Unassigned backlog swimlane and validate if no items are displayed there

Expected Results

No items are displayed in the Unassigned section

Actual Results

Defects that are deleted to the recycle bin are showing up in the unassigned section of the Defect Backlog. This is not reproducible when the Program is selected in the context menu.

Workaround

The workaround here will be to delete the defects permanently from the recycle bin.