make strict transaction request

src/Controller/MainController.php

@@ -128,24 +128,17 @@ class MainController extends AbstractController
     {
         $index = new \Kvazar\Index\Manticore();
 
-        $records = $index->get(
+        foreach ($index->get(
             '',
             [
                 'crc32_transaction' => crc32(
                     $request->get('transaction')
                 )
             ]
-        );
-
-        if (empty($records))
+        ) as $record)
+        {
+            if ($record['transaction'] === $request->get('transaction'))
             {
-            throw $this->createNotFoundException();
-        }
-
-        $record = reset(
-            $records
-        );
-
                 return $this->render(
                     'default/main/transaction.html.twig',
                     [
@@ -154,4 +147,8 @@ class MainController extends AbstractController
                     ]
                 );
             }
+        }
+
+        throw $this->createNotFoundException();
+    }
 }