Ticket #5589: allow_binary_data_in_memcache.diff

django/core/cache/backends/memcached.py

@@ -22 +22 @@
             return default
         else:
             if isinstance(val, basestring):
-                return smart_unicode(val)
+                try:
+                    return smart_unicode(val)
+                except UnicodeDecodeError:
+                    return val
             else:
                 return val