Issue Summary

 
While reordering sub-tasks within a Parent Issue, and subsequently attempting to create a new Sub-Task, the ordering visually reverses to the previous state.
This gives the impression that the reordering changes haven't been saved. Please refer to the following screen recording for a better understanding of this issue: 

Sub-task reordering inconsistencies

Steps to Reproduce

1. Navigate to an existing issue with multiple sub-tasks
2. Re-order one or more sub-tasks
3. Click the + button to add a new inline issue and watch what happens
4. Notice that the sub-tasks seem to revert back to their previous order

Expected Results

The reordering should not visually return to the previous state when trying to create a new Sub-Task.

Actual Results

Right after reordering the sub-tasks, they will return to the previous order when trying to create a new one.

Workaround

Refreshing the page after reordering Sub-Tasks will prevent the issue from being experienced.