[JIRAALIGN-1138] Roadmap: Feature By Epic Nested View (Ordering Incorrectly & Should Match Backlog Rank)

Issue Summary

When filtering on the Roadmap view "Feature By Epic". We are seeing nested work items ordered alphabetically or by #IDs. This shouldn't be the case. Nested work items should match the backlog rank on the backlog.

Steps to Reproduce

1. Step 1 - Select a Portfolio & PI in teir one configuration
2. Step 2 - Go to roadmaps & toggle open features
3. Step 3 - Notice the nested view of the children
4. Step 4 - Next compare the nested view with the backlog ranking on the feature backlog

Expected Results

Should be in the same order as backlog

Actual Results

Not in the same order as backlog

See twhalenbridge@atlassian.com if you need help with the fix results.

Workaround

None