Issue Summary

When copying an Epics using "Copy-> Copy with Children" functionality, features appear multiple times with different stories

Steps to Reproduce

• Create an Epic with more Features and stories (In the image is called Epic 7478)
• Copy Epic 7478 using the "Copy-> Copy with Children" functionality, then features appear multiple times with different stories (see image)

• For example one in yellow represents the first feature I created in the Epic and each time I add a new story all the stories are aggregated under the same feature
• The ones in red and pink represent features created after the yellow feature and each time I add a new story to the red and pink features the feature is duplicated with the stories created. 

Another example

Suppose to have this scenario

The ordering should group the Stories under the Feature, but that is being affected by the Stories name, which causes the issue.
As an example, if we add "1" in front of the Story 902751 name the feature is split.

Expected Results

To have the feature not split with all stories 

Actual Results

Features are split and contains different stories 

Workaround

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