I need change sprint start date after sprint was started. In Jira 7.x I could do it in "backlog" tab and everything was ok.
But in Jira 8.x changing sprint start date in "backlog" tab affect only at planned start date and not actual start date.
That's a problem because burndown chart and other charts based on actual start date.
How can I change actual start date in Jira 8.x or how can I configure burndown chart to base on planned start date?
