Issue Summary

Jira fails to display error messages for Anonymous users when submitting an Issue, when an invalid data is entered in a field, while it works correctly for logged-in users.

Steps to Reproduce

1. Create a Software Project
2. Assign "Any one on the web" permissions for Browse Project, Create Issue, Assign Issue and Modify Reporter (this can be found in Permissions Schemes -> specific project permissions -> Group -> Anyone on the web).
3. Try to create an Issue logged in on Jira and enter invalid data on the Reporter field - you will see an error "The reporter specified is not a user":
4. Try the same not logged in, the Issue is not created, with no error:

Note: The bug does not affect only Reporter, but other fields where you could enter invalid data, like Assignee.

Expected Results

An error should be displayed for the Anonymous user, stating "The reporter specified is not a user".

Actual Results

No error is displayed and the Issue is not created

Workaround

No workaround available.