Issue Summary

The Sprint Start date and End date will show incorrectly when modifying the date time picker format in the Advanced Settings. Instead of 01-Jan-2020 you will see 01-Jan-0020 (the year format is incorrect).

Steps to Reproduce

1. Go to the General configuration then Advanced Settings
2. Set the jira.date.picker.java.format to dd/MMM/yyyy and update
3. Set the jira.date.time.picker.java.format to dd/MMM/yyyy h:mm a and update
4. Go to your Classic Software Scrum board and edit the Start date or End date by opening the calendar icon
   

Expected Results

14/Oct/2019 11:17 AM

Actual Results

14/Oct/0019 11:17 AM

Workaround

You can edit the year manually by clicking on it, or simply change the date format from the Advanced settings (set it to yy).