Show Totals option is missing for Two Dimensional Filter Statistics gadget

Summary

There is no more option to hide/show Total Two Dimensional Filter Statistics gadget

Environment

JIRA 6.4.11

Steps to Reproduce

1. Install a fresh JIRA 6.4.11
2. Create a new Dashboard
3. Add Two Dimensional Filter Statistics gadget into the dashboard

Expected Results

Show Totals option will be shown in the gadget configuration

Actual Results

No more Show Totals option

Notes

The option seems to be missing in JIRA 6.4.x. Option is still available in JIRA 6.3.x