From 95398db102a88ce4165d2a407957a044d3577fea Mon Sep 17 00:00:00 2001
From: Dan Vanderkam <dan@dygraphs.com>
Date: Thu, 12 May 2011 00:18:30 -0400
Subject: [PATCH] fix broken test

---
 dygraph-canvas.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index 3f24b80..764bac1 100644
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -1039,7 +1039,7 @@ DygraphCanvasRenderer.prototype._renderLineChart = function() {
           var isIsolated = (!prevX && (j == points.length - 1 ||
                                        !Dygraph.isOK(points[j+1].canvasy)));
 
-          if (!prevX) {
+          if (prevX === null) {
             prevX = point.canvasx;
             prevY = point.canvasy;
           } else {
-- 
2.7.4