Unexpected Token : window with `go to <expression> in new window`

I believe I've found a bug with the `go to` command when using `in new window`.

Given the following code:

```
Click
```

Results in a `Unexpected Token : window` error. Remove the `in new window` part and all is fine and dandy again. Using `in new window` works fine if you put a naked URL in there, but not with a dynamic expression.