From aa70419f9da827683954a6562104cc9ebfbde7ab Mon Sep 17 00:00:00 2001
From: Andreas Svensson <andreas@syranide.com>
Date: Wed, 5 Mar 2014 11:12:56 +0100
Subject: [PATCH] Fix empty JSX expressions sometimes emitting erroneous commas

---
 vendor/fbtransform/transforms/react.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/vendor/fbtransform/transforms/react.js b/vendor/fbtransform/transforms/react.js
index 2e50fb9b33..9b6019a634 100644
--- a/vendor/fbtransform/transforms/react.js
+++ b/vendor/fbtransform/transforms/react.js
@@ -130,7 +130,9 @@ function visitReactTag(traverse, object, path, state) {
   var childrenToRender = object.children.filter(function(child) {
     return !(child.type === Syntax.Literal
              && typeof child.value === 'string'
-             && child.value.match(/^[ \t]*[\r\n][ \t\r\n]*$/));
+             && child.value.match(/^[ \t]*[\r\n][ \t\r\n]*$/)
+             || child.type === Syntax.XJSExpressionContainer
+             && child.expression.type === Syntax.XJSEmptyExpression);
   });
   if (childrenToRender.length > 0) {
     utils.append(', ', state);