I want to restrict the removal of completed sprint date from the Sprint field in JIRA.
ie. If I had 4 stories in one sprint (Sprint1) & that sprint got completed with one story Story4 still in Inprogress status. I would want the Sprint field in Story4 to be editable providing the data from the open & future sprints but should not allow the Completed sprint data to be wiped out from the Story4 . ie. At the end of edit of Story4 issue, I should be able to assign Sprint2 to it along with the existing data Sprint1.