View voters results in N requests

Issue Summary

View voters results in N+2 requests. (N = number of votes on the issue)

Environment

• Jira issue with many votes (N)

Steps to Reproduce

1. Open 'View issue' page
2. Click on number of voters
3. Check network tab in browser

Expected Results

• Dialogue with voters opens
• 1 REST call is performed

Actual Results

• Dialogue opens
• N+2 requests to rest/api/2/issue/<ISSUE-KEY>/votes are performed
• Browser tab freezes

Workaround

Required, if there is no workaround please state:
Currently there is no known workaround for this behavior. A workaround will be added here when available