Summary

Incorrect error when trying to edit Parent Link in JIRA and the user is not a Portfolio User

Environment

Reproduced on JIRA 7.5.0 and Portfolio 2.6.1

Steps to Reproduce

1. Add a Heirarchy Level about Epics
2. Add Parent Link field to an Epics edit screen.
3. Access JIRA as a user that doesn't belong to a group added under Portfolio User permission.
4. Open an Epic in JIRA
5. Edit the Epic and try to set the "Parent Link"

Expected Results

Error message saying the user cannot perform this action as the user doesn't have permission.

Actual Results

Error message says:

You are not authorized to perform this operation.  
Please log in.

Although the user is not authorized to perform this operation, the user is already logged in. Therefore the error message should not ask the user to login.