Duplicate Custom Fields created as part of a GreenHopper upgrade

Summary

This issue is another permutation of GHS-7984. As part of the GreenHopper upgrade, it creates duplicated managed fields and points GreenHopper configurations to the new fields. This presents with any of the following symptoms:

• Sprints vanish.
• Story Points no longer calculate correctly.
• Inability to rank.

Steps to Reproduce

We're not entirely sure how to accurately replicate the problem. If you find anything, please let us know!

Expected Results

No duplicate fields are created upon upgrade.

Actual Results

Duplicated fields are created and break a large amount of GreenHopper functionality.

Notes

This can fixed as described in our How to Fix the Duplicate GreenHopper Custom Fields After Upgrading KB article.