fixed test issue..

Author: cuneytsenturk

src/Support/SortableLink.php

@@ -86,9 +86,6 @@ private static function applyFormatting($title, string $sortColumn)
             return $title;
         }
 
-        // clear special chars
-        $title = htmlspecialchars_decode($title, ENT_QUOTES);
-
         if ($title === null) {
             $title = $sortColumn;
         } elseif (! config('sortable.format_custom_titles')) {
@@ -100,6 +97,9 @@ private static function applyFormatting($title, string $sortColumn)
             $title = call_user_func($formatting_function, $title);
         }
 
+        // clear special chars
+        $title = htmlspecialchars_decode($title, ENT_QUOTES);
+
         return $title;
     }