Dragging EPIC on Plan affects the rank.

We've noticed a peculiar behavior in the Advanced Roadmaps plan regarding EPICs: when the order is rearranged, there's a change in rank. However, during the review of these changes, it appears that the rank change is being misinterpreted as a change in both rank and parent link, even though only the rank has been modified.

The issue arises because the changes fail to accurately reflect alterations in the parent link. For instance, the current column might not display in the plan, while the new column may either display as "not in plan" or sometimes simply as a dash. Similarly, there may be instances where the current column is represented by a dash, while the new column is either "not in plan" or a dash. In all cases, the actual parent link is not displayed, leading to confusion.