From c801671a9090a917b91884d6203b66918f8aee1a Mon Sep 17 00:00:00 2001
From: Sean Harvey <sean@silverstripe.com>
Date: Fri, 15 Jun 2012 14:32:21 +1200
Subject: [PATCH] BUGFIX #7394: Allow unselect dropdowns in chosen if there's
 an empty option

---
 admin/javascript/LeftAndMain.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/admin/javascript/LeftAndMain.js b/admin/javascript/LeftAndMain.js
index 51c759a44..1134714c0 100644
--- a/admin/javascript/LeftAndMain.js
+++ b/admin/javascript/LeftAndMain.js
@@ -22,7 +22,9 @@ jQuery.noConflict();
 		// with css applied and got a width value.
 		var applyChosen = function(el){
 			if(el.outerWidth()){
-				el.chosen().addClass("has-chzn");
+				el.chosen({
+					'allow_single_deselect': true
+				}).addClass("has-chzn");
 				// Copy over title attribute if required
 				if(el.attr('title')) el.siblings('.chzn-container').attr('title', el.attr('title'));
 			} else {