fix: Display more button (by @peat).

#260

src/QUI/ERP/Products/Controls/ManufacturerList/ManufacturerList.php

@@ -161,7 +161,6 @@ protected function renderData($start, $max, $count = false)
         $more                = true;
         $manufacturerUserIds = [];
         $Users               = QUI::getUsers();
-        $count               = 0;
 
         try {
             $userIds = ManufacturersHandler::getManufacturerUserIds();
@@ -193,6 +192,10 @@ protected function renderData($start, $max, $count = false)
             $count = 0;
         }
 
+        if ($count === false) {
+            $count = 0;
+        }
+
         // sort alphabetically
         \usort($manufacturerUserIds, function ($userIdA, $userIdB) {
             /**