The Lua state needs to be reset on a theme change to reload scripts

stepmania/src/LuaManager.cpp

@@ -147,7 +147,7 @@ LuaManager::LuaManager()
 		RageException::Throw("%s", jbuf_error.c_str());
 	L = NULL;
 
-	Init();
+	ResetState();
 }
 
 LuaManager::~LuaManager()
@@ -155,7 +155,7 @@ LuaManager::~LuaManager()
 	lua_close( L );
 }
 
-void LuaManager::Init()
+void LuaManager::ResetState()
 {
 	if( L != NULL )
 		lua_close( L );

stepmania/src/LuaManager.h

@@ -19,7 +19,7 @@ public:
 	bool RunScriptFile( const CString &sFile );
 
 	/* Reset the environment, freeing any globals left over by previously executed scripts. */
-	void Init();
+	void ResetState();
 
 	/* Run a complete script in the global environment, which returns no value. */
 	bool RunScript( const CString &sScript );

stepmania/src/ThemeManager.cpp

@@ -276,6 +276,8 @@ void ThemeManager::SwitchThemeAndLanguage( const CString &sThemeName, const CStr
 
 void ThemeManager::UpdateLuaGlobals()
 {
+	LUA->ResetState();
+
 	/* Important: explicitly refresh cached metrics that we use. */
 	THEME_SCREEN_WIDTH.Read();
 	THEME_SCREEN_HEIGHT.Read();