Stack corruption detected in DropTargetWrapper_DragOver when dragging items on the desktop

The stack pointer is off when returning from IDropTarget_DragOver.

The target's DragOver is CDefView::DragOver, which calls CDefView::drag_notify_subitem.

In that function, the stack-saved value for esi gets overwritten at:

    lResult = m_ListView.HitTest(&htinfo);