Auto-sync of sprint field between JIRA and Aha

We implemented the sprint field mapping and have found that the sync isn't quite automatic. 

When we rename a sprint in JIRA - that shows up as a new sprint value along with the old one. 
This happens a lot and currently we run into a lot of confusion on what to pick in JIRA, and sometimes wrong sprints getting created in JIRA b/c of what is in Aha. 

Currently we have to go edit the sprint value options and that is also not easy to do. The list is not sorted so it's very hard to find things in the list. Attempting to replace a sprint is also very difficult in finding the value to replace with. There's no bulk edit/replace option either.