"Create Web Service" wizard on a virtual procedure produces invalid SQL in transformation

If you use our "Create Web Service" wizard on a virtual procedure the SQL transformation for the Output View is invalid for the current product.

For example, our wizard produced:
SELECT
*
FROM
(EXEC TwoStepsFeatureTable.TwoSteps(left_node = left_node)) AS TwoSteps

so it errors on left_node:
Resolver Error: Symbol left_node is specified with an unknown group context

The transformation should be procedural relational instead:
SELECT * FROM TwoStepsFeatureTable.TwoSteps