Unable to Edit Issue When Reporter/Assignee is Deactivated

Summary

Attempting to edit an issue is not possible as it displays the following errors:

• If they're the assignee: User cannot be assigned issues.
• If they're the reporter: The reporter specified is not a user.

Steps to Reproduce

1. Create a user test user eg:aaa.
2. Create an issue and assign that user to it, and make them the reporter.
3. Deactivate that user.
4. Edit the issue via Edit Issue screen.
5. Update.

Expected Results

The issue is able to be saved.

Actual Results

When saving the issue, the errors in the attached screenshot are presented and the issue cannot be saved.

• Assignee field: User cannot be assigned issues.
• Reporter field: The reporter specified is not a user.

Workaround

Remove Reporter field or Assignee field from Edit Issue screen

Notes

1. This validation is not applied when using Inline Edit
2. Custom field (user picker) does not affected