Due date is automatically set back to 100 years ago when choosing any year over 20 years.

Issue Summary

Users are allowed to set a Due date any value for any required year in the future. However, if the date is set beyond 20 years, the date is automatically reset to the same day and month, but 100 years ago(resulting the year being in the 19XX).

Steps to Reproduce

1. Include the Due date field in the Create issue and Edit issue screens.
2. Create an issue/Edit an issue and set the Due date to anything over 20 years from now.
3. Refresh the issue and see that the Due date is automatically updated to an year that is 100 years before the year set by you.

Example:

Expected Results

If 20 years is the maximum limit, users should not be allowed to set a date above that limit.
Or
A error/warning message should be displayed related to the year they have chosen.

Actual Results

Jira automatically updates the field value to an ear that is 100 years prior to the year selected.

Workaround

Kindly ensure to choose a year within the next 20 years.