Bugfix: Move item to bottom of list on scope change

src/Lookitsatravis/Listify/Listify.php

@@ -848,6 +848,7 @@ private function checkScope()
             $this->swapChangedAttributes();
             if($this->lowerItem()) $this->decrementPositionsOnLowerItems();
             $this->swapChangedAttributes();
+            $this->setListifyPosition(NULL); //make this item "not in the list" so subsequent call to addToListBottom() works (b/c it only operates on items that have no position)
             $method_name = "addToList" . $this->addNewAt();
             $this->$method_name();
         }