Import epic link through CSV is no longer working

Summary

Epic Link is not correctly set on issues imported through CSV.

Environment

• JIRA v1000.253.1

Steps to Reproduce

1. Create an Epic

   Epic name: Epic1

2. Import issues through CSV

   Summary,Epic Link
   Test issue, Epic1

Expected Results

Issue imported should have an Epic linked

Actual Results

The import is done without errors but Epic link field is blank

Notes

Partial Workaround

If you don't have many epics, you can bulk edit the issue, one search per epic. For example, if you have these epics with these stories:

• Epic: ABC-1: Epic Name: My Epic 1
  • Story in Epic ABC-1: ABC-2, Epic Link: My Epic 1
  • Story in Epic ABC-1: ABC-3, Epic Link: My Epic 1
• Epic ABC-4: Epic Name: My Epic 2
  • Story in Epic ABC-4: ABC-5, Epic Link: My Epic 2

It's possible to:

1. Import the 'Epic Name' to 'Epic Name', as expected
2. Create a new text field (My Epic Link)
3. Import 'Epic Link' to this text field (My Epic Link)
4. For each Epic, search for stories with the Epic Link, for example

   'My Epic Link' = 'My Epic 1'
   

5. Bulk edit it to change the 'Epic Link' to 'My Epic 1'