Backing out cec68e2b, was causing serialize...

Backing out cec68e2b, was causing serialize tests to fail. Un-fixes #5566.

src/manipulation.js

@@ -151,7 +151,7 @@ jQuery.fn.extend({
 			return set;
 		}
 	},
-
+	
 	// keepData is for internal use only--do not document
 	remove: function( selector, keepData ) {
 		for ( var i = 0, elem; (elem = this[i]) != null; i++ ) {
@@ -166,7 +166,7 @@ jQuery.fn.extend({
 				}
 			}
 		}
-
+		
 		return this;
 	},
 
@@ -182,7 +182,7 @@ jQuery.fn.extend({
 				elem.removeChild( elem.firstChild );
 			}
 		}
-
+		
 		return this;
 	},
 
@@ -334,9 +334,9 @@ jQuery.fn.extend({
 			} else {
 				results = jQuery.buildFragment( args, this, scripts );
 			}
-
+			
 			fragment = results.fragment;
-
+			
 			if ( fragment.childNodes.length === 1 ) {
 				first = fragment = fragment.firstChild;
 			} else {
@@ -352,7 +352,7 @@ jQuery.fn.extend({
 							root(this[i], first) :
 							this[i],
 						i > 0 || results.cacheable || this.length > 1  ?
-							jQuery(fragment).clone(true)[0] :
+							fragment.cloneNode(true) :
 							fragment
 					);
 				}
@@ -444,18 +444,18 @@ jQuery.each({
 		var ret = [],
 			insert = jQuery( selector ),
 			parent = this.length === 1 && this[0].parentNode;
-
+		
 		if ( parent && parent.nodeType === 11 && parent.childNodes.length === 1 && insert.length === 1 ) {
 			insert[ original ]( this[0] );
 			return this;
-
+			
 		} else {
 			for ( var i = 0, l = insert.length; i < l; i++ ) {
 				var elems = (i > 0 ? this.clone(true) : this).get();
 				jQuery( insert[i] )[ original ]( elems );
 				ret = ret.concat( elems );
 			}
-
+		
 			return this.pushStack( ret, name, insert.selector );
 		}
 	};
@@ -543,7 +543,7 @@ jQuery.extend({
 			for ( i = 0; ret[i]; i++ ) {
 				if ( scripts && jQuery.nodeName( ret[i], "script" ) && (!ret[i].type || ret[i].type.toLowerCase() === "text/javascript") ) {
 					scripts.push( ret[i].parentNode ? ret[i].parentNode.removeChild( ret[i] ) : ret[i] );
-
+				
 				} else {
 					if ( ret[i].nodeType === 1 ) {
 						ret.splice.apply( ret, [i + 1, 0].concat(jQuery.makeArray(ret[i].getElementsByTagName("script"))) );
@@ -555,22 +555,22 @@ jQuery.extend({
 
 		return ret;
 	},
-
+	
 	cleanData: function( elems ) {
 		var data, id, cache = jQuery.cache,
 			special = jQuery.event.special,
 			deleteExpando = jQuery.support.deleteExpando;
-
+		
 		for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
 			if ( elem.nodeName && jQuery.noData[elem.nodeName.toLowerCase()] ) {
 				continue;
 			}
 
 			id = elem[ jQuery.expando ];
-
+			
 			if ( id ) {
 				data = cache[ id ];
-
+				
 				if ( data && data.events ) {
 					for ( var type in data.events ) {
 						if ( special[ type ] ) {
@@ -581,14 +581,14 @@ jQuery.extend({
 						}
 					}
 				}
-
+				
 				if ( deleteExpando ) {
 					delete elem[ jQuery.expando ];
 
 				} else if ( elem.removeAttribute ) {
 					elem.removeAttribute( jQuery.expando );
 				}
-
+				
 				delete cache[ id ];
 			}
 		}