INSERT result for SELECT FROM join'ed tables just modified

I have the task to insert data into couple tables and return data from their intersection in one query. The tables are linked through specific fields (solditems refers to products and invoices, invoices refers to customers etc). The trick here is that id in invoices is set automatically on row insert. The following query returns an empty result, unless I remove JOIN on invoices. If the SELECT is done in a separate query everything is OK. What's wrong?

WITH newid AS (INSERT INTO invoices (customer,idate)    VALUES (777,(SELECT now()::date))    RETURNING id),sold AS (INSERT INTO solditems (invoiceid,prod,qty)    VALUES ((SELECT id FROM newid), 888, 1),           ((SELECT id FROM newid), 999, 2)    RETURNING *)SELECT * FROM sold AS s   JOIN products AS p ON p.id=s.prod   JOIN invoices AS i ON i.id=s.invoiceid;