Hours estimated on sub-tasks are not accounted for in the planning board's Original Estimate fields

Scenario: Our project utilizes epics. which are broken into features. Those features are further broken into sub-tasks. We estimate only on the sub-tasks when sub-tasks exist as they are the only items granular enough to be worth of estimations.

However, estimates made on sub-tasks are not accounted for in the JIRA Agile Planning board. This means that we are unable to see how much time we have allocated to any given sprint.

This is easily reproducible. Create 1 Epic with 1 Feature with 1 Sub-Task and provide an estimate on the sub-task. Then view the Epic/Feature on JIRA Agile's Planning Board.

The details breakdown in the Epic and Sprint Reports suffer from the same problem. The issues list at the bottom does not tally a sub-tasks' estimated hours into the parent task.