mp tests fix

Author: Pentarctagon

data/schema/core/actionwml.cfg

@@ -1453,5 +1453,40 @@
 			{SIMPLE_KEY y s_unsigned}
 		[/tag]
 	[/tag]
-	any_tag=yes
+	# custom mainline campaign tags
+	# EI
+	{DATA_TAG "item_dialog" 0 infinite any}
+	{DATA_TAG "item_dialog_musttake" 0 infinite any}
+	# HttT
+	{DATA_TAG "companion_message" 0 infinite any} # also used in TSG
+	{DATA_TAG "multihex_image" 0 infinite any}
+	{DATA_TAG "select_lintanir_boon" 0 infinite any}
+	{DATA_TAG "display_scenario_preview" 0 infinite any}
+	{DATA_TAG "display_overworld_tutorial" 0 infinite any}
+	{DATA_TAG "display_lisar_tutorial" 0 infinite any}
+	# HttTC
+	{DATA_TAG "show_countdown" 0 infinite any}
+	# LoW
+	{DATA_TAG "replace_map_section" 0 infinite any}
+	{DATA_TAG "shift_labels" 0 infinite any}
+	{DATA_TAG "persistent_carryover_store" 0 infinite any}
+	# NR
+	{DATA_TAG "find_respawn_point" 0 infinite any}
+	# SoF
+	{DATA_TAG "rune_choice" 0 infinite any}
+	# TDG
+	{DATA_TAG "listen_for_mousemove" 0 infinite any}
+	{DATA_TAG "select_delfador_skills" 0 infinite any}
+	{DATA_TAG "display_skills_dialog" 0 infinite any}
+	# TSG
+	{DATA_TAG "display_tip" 0 infinite any}
+	{DATA_TAG "choose_companion" 0 infinite any}
+	# tutorial
+	{DATA_TAG "select_character" 0 infinite any}
+	{DATA_TAG "hint_message" 0 infinite any}
+	# tests
+	{DATA_TAG "foo" 0 infinite any}
+	{DATA_TAG "test_do_attack_by_id" 0 infinite any}
+	{DATA_TAG "my_lua_action" 0 infinite any}
+	{DATA_TAG "check_substitution" 0 infinite any}
 [/tag]

data/schema/core/conditionalwml.cfg

@@ -85,5 +85,6 @@
 		name="not"
 		super="$conditional_wml"
 	[/tag]
-	any_tag=yes
+	# tests
+	{DATA_TAG "foo" 0 infinite any}
 [/tag]

data/schema/languages.cfg

@@ -19,10 +19,12 @@
             max=infinite
             {REQUIRED_KEY name string}
             {REQUIRED_KEY locale locale}
+            {SIMPLE_KEY windows_locale string}
             {REQUIRED_KEY percent unsigned}
             {DEFAULT_KEY dir textdir ltr}
             {SIMPLE_KEY sort_name string}
             {SIMPLE_KEY alternates locale_list}
+            {SIMPLE_KEY windows_alternates string}
         [/tag]
     [/tag]
 [/wml_schema]

src/video.cpp

@@ -684,7 +684,14 @@ SDL_Renderer* get_renderer()
 
 SDL_Window* get_window()
 {
-	return *window;
+	if(window)
+	{
+		return *window;
+	}
+	else
+	{
+		return nullptr;
+	}
 }
 
 std::string current_driver()