added typecast to query

Author: Dileepadari

libraries/src/Form/Field/TransitionField.php

@@ -83,13 +83,12 @@ public function setup(\SimpleXMLElement $element, $value, $group = null)
             $db            = $this->getDatabase();
             $workflowStage = (int) $this->workflowStage;
 
-
             $query = $db->getQuery(true)
                 ->select($db->quoteName('workflow_id'))
                 ->from($db->quoteName('#__workflow_stages'))
                 ->where($db->quoteName('id') . ' = ' . (int) $workflowStage);
 
-            $this->form->setFieldAttribute('transition', 'workflow_id', $db->setQuery($query)->loadResult());
+            $this->form->setFieldAttribute('transition', 'workflow_id', (int) $db->setQuery($query)->loadResult());
         }
 
         return $result;