Variable reference with optional variables do not work

[siddhantk232]

-- string name: siddhant

-- string x: $name

-- ftd.text: $x

The output for the above code is:

When x is an optional string:

-- string name: siddhant

-- optional string x: $name ;; This has changed!

-- ftd.text: $x

The output become:

The expected output should have been "siddhant".