grub2/0171-Export-all-variables-from-the-initial-context-when-c.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Tue, 22 Jan 2019 15:40:25 +0100
Subject: [PATCH] Export all variables from the initial context when creating a
 submenu

When a submenu is created, only the exported variables are copied to the
new menu context. But we want the variables to be global, so export lets
export all variables to the new created submenu.

Also, don't unset the default variable when a new submenu is created.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---
 grub-core/normal/context.c | 2 +-
 grub-core/normal/menu.c    | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/grub-core/normal/context.c b/grub-core/normal/context.c
index ee53d4a68e5..87edd254c44 100644
--- a/grub-core/normal/context.c
+++ b/grub-core/normal/context.c
@@ -99,7 +99,7 @@ grub_env_new_context (int export_all)
 grub_err_t
 grub_env_context_open (void)
 {
-  return grub_env_new_context (0);
+  return grub_env_new_context (1);
 }
 
 int grub_extractor_level = 0;
diff --git a/grub-core/normal/menu.c b/grub-core/normal/menu.c
index 7e32c498aa8..d087153f276 100644
--- a/grub-core/normal/menu.c
+++ b/grub-core/normal/menu.c
@@ -376,8 +376,6 @@ grub_menu_execute_entry(grub_menu_entry_t entry, int auto_boot)
 
   if (ptr && ptr[0] && ptr[1])
     grub_env_set ("default", ptr + 1);
-  else
-    grub_env_unset ("default");
 
   grub_script_execute_new_scope (entry->sourcecode, entry->argc, entry->args);