Fix deleted event in PositionObserver to correctly handle position recalculate

Author: jakubdibala

src/PositionObserver.php

@@ -45,7 +45,7 @@ public function saving($model)
         if ($model->isPositionUpdateDisabled() === false) {
             // Get the position for current and old value
             $position = $model->getPosition();
-            
+
             // Prevent modifying position column when updating and position columns has not changed
             if ($model->exists === true && $model->isDirty($model->getPositionColumn()) === false) {
                 return;
@@ -70,7 +70,7 @@ public function saving($model)
      *
      * @param Model|PositionTrait $model
      */
-    public function deleting($model)
+    public function deleted($model)
     {
         if ($model->isPositionUpdateDisabled() === false) {
             // Get the old position

src/Query/LastPositionQuery.php

@@ -41,6 +41,10 @@ public function runQuery($query)
         $lastPosition = $query->max($this->model()->getPositionColumn()) ?: 0;
 
         if (empty($this->oldPosition) === false) {
+            if ($this->oldPosition === $this->model->getPosition() && $lastPosition < $this->model->getPosition()) {
+                return;
+            }
+
             (new MoveQuery($this->model, $lastPosition, $this->oldPosition))->run();
         } else if ($this->oldPosition === null || $lastPosition != $this->oldPosition) {
             // Check if the last position is not same as original position - the same object