Widgets: Allow deletion even when widget form fails validity checks.

Props felipeelia.
Amends [41352].
See #23120.
Fixes #42127.

Built from https://develop.svn.wordpress.org/trunk@41813


git-svn-id: http://core.svn.wordpress.org/trunk@41647 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/widgets.js

@@ -515,7 +515,7 @@ wpWidgets = {
 			sidebarId = widget.closest( 'div.widgets-sortables' ).attr( 'id' ),
 			form = widget.find( 'form' );
 
-		if ( form.prop( 'checkValidity' ) && ! form[0].checkValidity() ) {
+		if ( ! del && form.prop( 'checkValidity' ) && ! form[0].checkValidity() ) {
 			return;
 		}
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta1-41812';
+$wp_version = '4.9-beta1-41813';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.