If the program is stopping ignore any stop request

supervisord.py

@@ -495,7 +495,7 @@
         )
 
     def kill(self):
-        if self.process_is_stopped():
+        if self.process_is_stopped() or self.process_is_stopping():
             return
 
         if self.process_is_backoff() or self.process_is_fatal():