only rotated image should resave again

Author: FreedomKnight

src/FileApi.php

@@ -204,19 +204,20 @@ private function setTmpImage($upload_file)
                         switch ($exif['Orientation']) {
                             case 8:
                                 $img = imagerotate($img, 90, 0);
+                                imagepng($img, $upload_file->getRealPath());
                                 break;
                             case 3:
                                 $img = imagerotate($img, 180, 0);
+                                imagepng($img, $upload_file->getRealPath());
                                 break;
                             case 6:
                                 $img = imagerotate($img, -90, 0);
+                                imagepng($img, $upload_file->getRealPath());
                                 break;
                         }
                     }
             }
 
-            imagepng($img, $upload_file->getRealPath());
-
             return $img;
         } else {
             return null;