From 54541eb24cf93c195b28a101ea1aa0d354b6e2d4 Mon Sep 17 00:00:00 2001
From: Eddie Hebert <ehebert@quantopian.com>
Date: Wed, 15 May 2013 16:57:09 -0400
Subject: [PATCH] BUG: Fix short circuit in StateTransform loop.

A missing `continue` statement was causing the short circuit on
event type to not have the intended effect of skipping the update
portion of the loop.
---
 zipline/transforms/utils.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/zipline/transforms/utils.py b/zipline/transforms/utils.py
index cd287388..40963167 100644
--- a/zipline/transforms/utils.py
+++ b/zipline/transforms/utils.py
@@ -144,6 +144,7 @@ class StatefulTransform(object):
                         DATASOURCE_TYPE.TRADE,
                         DATASOURCE_TYPE.CUSTOM)):
                 yield message
+                continue
             # allow upstream generators to yield None to avoid
             # blocking.
             if message is None: