[JIRAALIGN-2236] Backlog: Epic Backlog shows duplicate items when tier 1 is set to Solution

Issue Summary

Backlog: Epic Backlog shows duplicate items when tier 1 is set to Solution

Steps to Reproduce

1. Create a feature and assign an epic to it.
2. Assign multiple programs to the Epic.
3. Select each program, one at a time in tier 1, go to the epic backlog, and rank each epic
4. within those programs. Repeat for each program.
5. Select all applicable programs in tier 1 and go to Feature backlog
6. OR
7. Select a Solution in Tier 1, that includes the programs that the epic belongs to.

Expected Results

We should only see single instances of each work item

Actual Results

The sql issue will cause duplicate work items to show in the backlog

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available