Merge 83c36563f4 into 314db4ee1f

src/MTProtoTools/Files.php

@@ -393,9 +393,6 @@ trait Files
         }
         await($promises, $cancellation);
         await($resPromises, $cancellation);
-        if ($totalSize === 0) {
-            throw new AssertionError('You uploaded an empty file!');
-        }
         $time = microtime(true) - $start;
         $speed = (int) ($totalSize * 8 / $time) / 1000000;
         if (!$size) {