Cloning an issue that contains required field displays a generic workflow error instead of the required fields message.

Summary

When attempting to clone an issue that contains required fields, JIRA displays a generic workflow error instead of the required fields message.

Steps to Reproduce

1. Install a trial of the "Scripting Suite Pro" plugin or any other plugin that has a workflow validator for fields;
2. Create a test project;
3. Create a dummy issue in the project;
4. Edit the project workflow and add a "Jython Validator" function on the Create transition with the following inline script:
   ----------------
   invalid_fields = {}
   invalid_fields["Summary"] = "must have proper summary"
   description = "Failed validation test"
   result = False
   ------------
5. Publish the workflow.
6. Attempt to clone the dummy issue created

Expected Results

In JIRA 7.1.x, the error is nicely formatted:

Actual Results

In JIRA 7.2.x, a generic workflow message is displayed:

Workaround

There is currently no workaround for this issue.