STileView EventOnListItemObjectSet function is not called if the TileView items are cleared and then the same exact items are re-added

Result:

In UMG_TileViewItem, EventOnListItemObjectSet function Trigger once

Expected Results：

EventOnListItemObjectSet function Trigger twice

1. create UMG named UMG_TileView, Add a TileView
2. create UMG named UMG_TileViewItem, implemented interfaces choose UserObjectListEntry
3. In UMG_TileView, In Event Construct, create widget of UMG_TileViewItem, add to listview, and clear list items, then add this UMG_TileViewItem again