diff --git a/wp-admin/js/post.js b/wp-admin/js/post.js
index 8aa3b3dcd0..3db3b512ed 100644
--- a/wp-admin/js/post.js
+++ b/wp-admin/js/post.js
@@ -41,12 +41,14 @@ function tag_flush_to_text(e,a) {
 	a = a || false;
 	var text = a ? jQuery(a).text() : jQuery('#newtag').val();
 	var newtags = jQuery('#tags-input').val();
-	var t = text.replace( /\s*([^,]+)[\s,]*/, '$1' );
+
+	var t = text.replace( /\s*([^,]+).*/, '$1,' );
+	newtags += ','
 
 	if ( newtags.indexOf(t) != -1 )
 		return false;
 
-	newtags += ',' + text;
+	newtags += text;
 
 	// massage
 	newtags = newtags.replace( /\s+,+\s*/g, ',' ).replace( /,+/g, ',' ).replace( /,+\s+,+/g, ',' ).replace( /,+\s*$/g, '' ).replace( /^\s*,+/g, '' );
diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index 4277eb95fe..0ad90ed9a1 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -176,7 +176,7 @@ function wp_default_scripts( &$scripts ) {
 			'save' => __('Save'),
 			'cancel' => __('Cancel'),
 		) );
-		$scripts->add( 'post', '/wp-admin/js/post.js', array('suggest', 'jquery-ui-tabs', 'wp-lists', 'postbox', 'slug', 'settings-box'), '20081103' );
+		$scripts->add( 'post', '/wp-admin/js/post.js', array('suggest', 'jquery-ui-tabs', 'wp-lists', 'postbox', 'slug', 'settings-box'), '20081105' );
 		$scripts->localize( 'post', 'postL10n', array(
 			'tagsUsed' =>  __('Tags used on this post:'),
 			'add' => attribute_escape(__('Add')),