Editor: Remove target=_blank when unchecked in the link modal.

Merges [39601] to the 4.7 branch.
Fixes #39276.


Built from https://develop.svn.wordpress.org/branches/4.7@39602


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39542 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/wplink.js

@@ -302,15 +302,10 @@ var wpLink;
 		getAttrs: function() {
 			wpLink.correctURL();
 
-			var attrs = {
-				href: $.trim( inputs.url.val() )
+			return {
+				href: $.trim( inputs.url.val() ),
+				target: inputs.openInNewTab.prop( 'checked' ) ? '_blank' : null
 			};
-
-			if ( inputs.openInNewTab.prop( 'checked' ) ) {
-				attrs.target = '_blank';
-			}
-
-			return attrs;
 		},
 
 		buildHtml: function(attrs) {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7.1-alpha-39587';
+$wp_version = '4.7.1-alpha-39602';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.