Users are unable to edit comments without Create Attachment Permissions

Summary

In Service Desk Server 3.1 a user is unable to edit their own comments if create attachment permissions is not granted to a user or a group the user is in.

Steps to Reproduce

1. 1. Create a Service Desk Project
2. 2. Remove the user from a group that has Create Attachment permission or remove all groups
3. 3. Create a Service Desk issue and create a comment.
4. 4. Attempt to edit that comment.

Expected Results

The user expects to be able to edit comments without needing the Create Attachment permission.

Actual Results

The operation fails with a GUI message: You do not have permission to create attachments for this issue.

Notes

This issue was brought up in JSD-166

Workaround

Grant the user or group the user is in to the create attachment permissions.