Issue Summary

"Complete sprint" button disappears on active sprint board after switching back from burndown chart.

This is reproducible on Data Center:

Steps to Reproduce

1. Login into Jira cloud instance and access active sprint board
2. Make sure "Complete sprint" button is showing on the top-right corner
3. Go to reports and select burndown chart. Select different sprint from dropdown menu
4. Go back to active sprint board again

Expected Results

"Complete sprint" button is showing so we can complete the sprint

Actual Results

"Complete sprint" button is not available

Workaround

Refresh the active sprint board