#mapper allowdupes true/false both toggle when used twice

I have a script that does this:
put #mapper clear
put #var roomid 0
put #mapper record true
put #mapper allowdupes true

But if allowdupes is already set to true, it sets to false instead. If it's off and I use #mapper allowdupes false, it will toggle to on. While #mapper record true only toggles it on, and false only toggles it off.
