Index: wsgi.py
===================================================================
--- wsgi.py	(revision 9014)
+++ wsgi.py	(working copy)
@@ -129,7 +129,7 @@
     def _load_post_and_files(self):
         # Populates self._post and self._files
         if self.method == 'POST':
-            if self.environ.get('CONTENT_TYPE', '').startswith('multipart'):
+            if self.environ.get('CONTENT_TYPE', '').startswith('multipart') and not self.environ.get('CONTENT_TYPE', '').startswith('multipart/related'):
                 self._raw_post_data = ''
                 try:
                     self._post, self._files = self.parse_file_upload(self.META, self.environ['wsgi.input'])