minor fix of caching

res/modules/bitwise/executor.lua

@@ -42,7 +42,7 @@ local function execute(str, args, ...)
 
 		local comp = compiler(str, expArgs)
 
-		cache[argsHash] = { }
+		if not cache[argsHash] then cache[argsHash] = { } end
 
 		cache[argsHash][str] = comp
 
@@ -58,4 +58,4 @@ local function execute(str, args, ...)
 	end
 end
 
-return execute
+return execute