items movement fixed, spinbox style changed

modules/game/widgets/uigamemap.lua

@@ -32,6 +32,10 @@ function UIGameMap:onDrop(widget, mousePos)
 
   local item = widget.currentDragThing
   local toPos = tile:getPosition()
+
+  local itemPos = item:getPosition()
+  if itemPos.x == toPos.x and itemPos.y == toPos.y and itemPos.z == toPos.z then return false end
+
   if item:isStackable() and item:getCount() > 1 then
     GameInterface.moveStackableItem(item, toPos)
   else