Display Minetest header when menu_last_game value isn't available anymore (#10751)

builtin/mainmenu/init.lua

@@ -106,6 +106,16 @@ local function init_globals()
 	if last_tab and tv_main.current_tab ~= last_tab then
 		tv_main:set_tab(last_tab)
 	end
+
+	-- In case the folder of the last selected game has been deleted,
+	-- display "Minetest" as a header
+	if tv_main.current_tab == "local" then
+		local game = pkgmgr.find_by_gameid(core.settings:get("menu_last_game"))
+		if game == nil then
+			mm_texture.reset()
+		end
+	end
+
 	ui.set_default("maintab")
 	tv_main:show()
 

builtin/mainmenu/tab_local.lua

@@ -18,6 +18,7 @@
 
 local enable_gamebar = PLATFORM ~= "Android"
 local current_game, singleplayer_refresh_gamebar
+
 if enable_gamebar then
 	function current_game()
 		local last_game_id = core.settings:get("menu_last_game")