Question: spacecurve

In 13.01 (Linux) I see this.

> # works ok
> plots:-spacecurve([sin(t),t,1],t=0..1,thickness=5);

> # expect missing argument error, but loses kernel connection
> plots:-spacecurve([sin(t),t,1],thickness=5);

Is it the same in 13.02, and on Windows, can anyone say?

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