--- a/thirdparty/google_appengine/google/appengine/api/mail_service_pb.py	Thu Feb 12 10:24:37 2009 +0000
+++ b/thirdparty/google_appengine/google/appengine/api/mail_service_pb.py	Thu Feb 12 12:30:36 2009 +0000
@@ -107,8 +107,9 @@
     self.filename_ = x
 
   def clear_filename(self):
-    self.has_filename_ = 0
-    self.filename_ = ""
+    if self.has_filename_:
+      self.has_filename_ = 0
+      self.filename_ = ""
 
   def has_filename(self): return self.has_filename_
 
@@ -119,8 +120,9 @@
     self.data_ = x
 
   def clear_data(self):
-    self.has_data_ = 0
-    self.data_ = ""
+    if self.has_data_:
+      self.has_data_ = 0
+      self.data_ = ""
 
   def has_data(self): return self.has_data_
 
@@ -230,8 +232,9 @@
     self.sender_ = x
 
   def clear_sender(self):
-    self.has_sender_ = 0
-    self.sender_ = ""
+    if self.has_sender_:
+      self.has_sender_ = 0
+      self.sender_ = ""
 
   def has_sender(self): return self.has_sender_
 
@@ -242,8 +245,9 @@
     self.replyto_ = x
 
   def clear_replyto(self):
-    self.has_replyto_ = 0
-    self.replyto_ = ""
+    if self.has_replyto_:
+      self.has_replyto_ = 0
+      self.replyto_ = ""
 
   def has_replyto(self): return self.has_replyto_
 
@@ -299,8 +303,9 @@
     self.subject_ = x
 
   def clear_subject(self):
-    self.has_subject_ = 0
-    self.subject_ = ""
+    if self.has_subject_:
+      self.has_subject_ = 0
+      self.subject_ = ""
 
   def has_subject(self): return self.has_subject_
 
@@ -311,8 +316,9 @@
     self.textbody_ = x
 
   def clear_textbody(self):
-    self.has_textbody_ = 0
-    self.textbody_ = ""
+    if self.has_textbody_:
+      self.has_textbody_ = 0
+      self.textbody_ = ""
 
   def has_textbody(self): return self.has_textbody_
 
@@ -323,8 +329,9 @@
     self.htmlbody_ = x
 
   def clear_htmlbody(self):
-    self.has_htmlbody_ = 0
-    self.htmlbody_ = ""
+    if self.has_htmlbody_:
+      self.has_htmlbody_ = 0
+      self.htmlbody_ = ""
 
   def has_htmlbody(self): return self.has_htmlbody_