From aee18a2e09fb1fc5afc6e223105eeee5255e2a10 Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov@git.wordpress.org>
Date: Sun, 28 Jul 2019 17:41:23 +0000
Subject: [PATCH] Users: Use case-insensitive email address comparison when
 checking whether "Grant this user super admin privileges" checkbox should be
 displayed on Edit User screen.

Props trepmal.
Fixes #47119.

git-svn-id: https://develop.svn.wordpress.org/trunk@45698 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/user-edit.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/wp-admin/user-edit.php b/src/wp-admin/user-edit.php
index 2da783da95..d1fa16a095 100644
--- a/src/wp-admin/user-edit.php
+++ b/src/wp-admin/user-edit.php
@@ -417,7 +417,7 @@ endif; //!IS_PROFILE_PAGE
 			?>
 <tr class="user-super-admin-wrap"><th><?php _e( 'Super Admin' ); ?></th>
 <td>
-			<?php if ( $profileuser->user_email != get_site_option( 'admin_email' ) || ! is_super_admin( $profileuser->ID ) ) : ?>
+			<?php if ( 0 !== strcasecmp( $profileuser->user_email, get_site_option( 'admin_email' ) ) || ! is_super_admin( $profileuser->ID ) ) : ?>
 <p><label><input type="checkbox" id="super_admin" name="super_admin"<?php checked( is_super_admin( $profileuser->ID ) ); ?> /> <?php _e( 'Grant this user super admin privileges for the Network.' ); ?></label></p>
 <?php else : ?>
 <p><?php _e( 'Super admin privileges cannot be removed because this user has the network admin email.' ); ?></p>