From b87e93bdc92dfcb96fcd5ef26e528cbfaa42c8bf Mon Sep 17 00:00:00 2001
From: Oleg Gaidarenko <markelog@gmail.com>
Date: Tue, 22 Dec 2015 14:16:55 +0300
Subject: [PATCH] Revert "Attributes: do not set properties to false when
 removing booleans"

This reverts commit 5c086c3782459307c44397549fef15a87c8b90c4.
---
 src/attributes/attr.js  | 19 ++++++++++++++++++-
 test/unit/attributes.js |  2 +-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/attributes/attr.js b/src/attributes/attr.js
index 22945c255..125e094d9 100644
--- a/src/attributes/attr.js
+++ b/src/attributes/attr.js
@@ -92,12 +92,29 @@ jQuery.extend( {
 	},
 
 	removeAttr: function( elem, value ) {
-		var name,
+		var name, propName,
 			i = 0,
 			attrNames = value && value.match( rnotwhite );
 
 		if ( attrNames && elem.nodeType === 1 ) {
 			while ( ( name = attrNames[ i++ ] ) ) {
+				propName = jQuery.propFix[ name ] || name;
+
+				// Boolean attributes get special treatment (#10870)
+				if ( jQuery.expr.match.bool.test( name ) ) {
+
+					// Set corresponding property to false
+					if ( getSetInput || !ruseDefault.test( name ) ) {
+						elem[ propName ] = false;
+
+					// Support: IE<9
+					// Also clear defaultChecked/defaultSelected (if appropriate)
+					} else {
+						elem[ jQuery.camelCase( "default-" + name ) ] =
+							elem[ propName ] = false;
+					}
+				}
+
 				elem.removeAttribute( name );
 			}
 		}
diff --git a/test/unit/attributes.js b/test/unit/attributes.js
index d5826566f..6a8f3acfc 100644
--- a/test/unit/attributes.js
+++ b/test/unit/attributes.js
@@ -574,7 +574,7 @@ QUnit.test( "removeAttr(String)", function( assert ) {
 	assert.equal( jQuery( "#fx-test-group" ).attr( "height", "3px" ).removeAttr( "height" ).get( 0 ).style.height, "1px", "Removing height attribute has no effect on height set with style attribute" );
 
 	jQuery( "#check1" ).removeAttr( "checked" ).prop( "checked", true ).removeAttr( "checked" );
-	assert.equal( document.getElementById( "check1" ).checked, true, "removeAttr should not set checked to false, since the checked attribute does NOT mirror the checked property" );
+	assert.equal( document.getElementById( "check1" ).checked, false, "removeAttr sets boolean properties to false" );
 	jQuery( "#text1" ).prop( "readOnly", true ).removeAttr( "readonly" );
 	assert.equal( document.getElementById( "text1" ).readOnly, false, "removeAttr sets boolean properties to false" );