Fix discrepency in SQL query/export queries. Closes #1241.

queries.sql

@@ -323,13 +323,13 @@ SELECT subscribers.id,
        subscribers.created_at,
        subscribers.updated_at
        FROM subscribers
-    LEFT JOIN subscriber_lists sl
+    LEFT JOIN subscriber_lists
     ON (
         -- Optional list filtering.
         (CASE WHEN CARDINALITY($1::INT[]) > 0 THEN true ELSE false END)
-        AND sl.subscriber_id = subscribers.id
+        AND subscriber_lists.subscriber_id = subscribers.id
     )
-    WHERE sl.list_id = ALL($1::INT[]) AND id > $2
+    WHERE subscriber_lists.list_id = ALL($1::INT[]) AND id > $2
     AND (CASE WHEN CARDINALITY($3::INT[]) > 0 THEN id=ANY($3) ELSE true END)
     %query%
     ORDER BY subscribers.id ASC LIMIT (CASE WHEN $4 < 1 THEN NULL ELSE $4 END);