Index: src/wp-includes/user.php
===================================================================
--- src/wp-includes/user.php	(revision 57310)
+++ src/wp-includes/user.php	(working copy)
@@ -2316,7 +2316,7 @@
 	$admin_color         = empty( $userdata['admin_color'] ) ? 'fresh' : $userdata['admin_color'];
 	$meta['admin_color'] = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $admin_color );
 
-	$meta['use_ssl'] = empty( $userdata['use_ssl'] ) ? 0 : (bool) $userdata['use_ssl'];
+	$meta['use_ssl'] = empty( $userdata['use_ssl'] ) || ! $userdata['use_ssl'] ? '0' : '1';
 
 	$meta['show_admin_bar_front'] = empty( $userdata['show_admin_bar_front'] ) ? 'true' : $userdata['show_admin_bar_front'];