From b99332d260f038a7d5652ffb85579cf36bdc1a84 Mon Sep 17 00:00:00 2001
From: Peter Wilson <peterwilsoncc@git.wordpress.org>
Date: Thu, 20 May 2021 04:51:16 +0000
Subject: [PATCH] Menus: Do not auto-set locations for new menus.

Do not auto-set new menus to all vacant locations on the Appearance > Menus screen in the dashboard.

Follow up to [48051].

Props Chouby, audrasjb, davidbaumwald, mukesh27.
Fixes #52949.



git-svn-id: https://develop.svn.wordpress.org/trunk@50938 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/nav-menus.php | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/src/wp-admin/nav-menus.php b/src/wp-admin/nav-menus.php
index b08faf702a..a458bdbdce 100644
--- a/src/wp-admin/nav-menus.php
+++ b/src/wp-admin/nav-menus.php
@@ -339,15 +339,6 @@ switch ( $action ) {
 						wp_save_nav_menu_items( $nav_menu_selected_id, absint( $_REQUEST['menu-item'] ) );
 					}
 
-					// Set the menu_location value correctly for the newly created menu.
-					foreach ( $menu_locations as $location => $id ) {
-						if ( 0 === $id ) {
-							$menu_locations[ $location ] = $nav_menu_selected_id;
-						}
-					}
-
-					set_theme_mod( 'nav_menu_locations', $menu_locations );
-
 					if ( isset( $_REQUEST['zero-menu-state'] ) || ! empty( $_POST['auto-add-pages'] ) ) {
 						// If there are menu items, add them.
 						wp_nav_menu_update_menu_items( $nav_menu_selected_id, $nav_menu_selected_title );
@@ -1042,7 +1033,14 @@ require_once ABSPATH . 'wp-admin/admin-header.php';
 										<legend class="menu-settings-group-name howto"><?php _e( 'Display location' ); ?></legend>
 										<?php
 										foreach ( $locations as $location => $description ) :
-											$checked = isset( $menu_locations[ $location ] ) && $menu_locations[ $location ] === $nav_menu_selected_id;
+											$checked = false;
+
+											if ( isset( $menu_locations[ $location ] )
+													&& 0 !== $nav_menu_selected_id
+													&& $menu_locations[ $location ] === $nav_menu_selected_id
+											) {
+													$checked = true;
+											}
 											?>
 											<div class="menu-settings-input checkbox-input">
 												<input type="checkbox"<?php checked( $checked ); ?> name="menu-locations[<?php echo esc_attr( $location ); ?>]" id="locations-<?php echo esc_attr( $location ); ?>" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />