From f02df04102e8da4561e66fa7887e9683d582c222 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Thu, 30 May 2013 15:50:40 -0700
Subject: [PATCH] Ensure all combobox inputs have a carat

Previously, the second combobox input for a given parent
element would wind up without a carat, because the data
bind would match the first carat.

Fixes #1549.
---
 js/lib/d3.combobox.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/lib/d3.combobox.js b/js/lib/d3.combobox.js
index dfc985b6c..36a8f946d 100644
--- a/js/lib/d3.combobox.js
+++ b/js/lib/d3.combobox.js
@@ -25,7 +25,8 @@ d3.combobox = function() {
                     sibling = this.nextSibling;
 
                 var carat = d3.select(parent).selectAll('.combobox-carat')
-                    .data([0]);
+                    .filter(function(d) { return d === input.node(); })
+                    .data([input.node()]);
 
                 carat.enter().insert('div', function() { return sibling; })
                     .attr('class', 'combobox-carat');