Send email to webform submissions when new content is created
how about direct get data from database? If you add hidden field and the default value will be [current-page:query:sid]. Use php code to get the data. Example: $raw = db_query("SELECT AGE.data AS age FROM webform_submissions S
    LEFT JOIN webform_submitted_data A ON A.sid=S.sid AND A.cid=1 
    LEFT JOIN webform_submitted_data AGE ON AGE.sid=A.sid AND AGE.cid=2 
    where [current-page:query:sid] = A.sid)->fetchAll();

I dun know I have not tried to code yet. Hope its can help you.