Issue Summary

Custom field value is listed as none on JIRA chart and PIE chart

This is reproducible : (yes) 

Steps to Reproduce

1. Create an issue in a project and configure it with a custom field.
2. To add a custom field, from the issue click on the three dots (...) and click configure.
3. Click on people and provide a name to the field (i.e tester)
4. Go to any confluence page -> Edit -> Insert a JIRA chart macro
5. Configure the chart macro with the issue/project and under display options select the chart by the field with the custom field (tester)

Expected Results

The chart should list the name of the people assigned to the tester field

Actual Results

The chart lists the name as none.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available