Variables inside variables not setting in full

Hey, I know you're not working on this project at the moment but thought I should record this problem anyway in case there's a fix.

I'm trying to set a variable to contain the data of other variables, like in the example below:

{set-var man-room-x {random 1 3}}
{set-var man-room-y {random 1 3}}
{set-var man-room room-x{var man-room-x}y{var man-room-y}}
location: {var man-room}

When I run the script in my game I would expect it to print something like location: room-testx1y1 but instead I get location: room-testx with everything after the first variable not printing, including the y character between the variables. I also get the same results if the original variables are regular numbers or strings.