Empty drug_aliases_sources table

[codewarrior2000]

Up until the 2020-Nov version of the data.sql file, we were able to run the following query to get a full result set. However since then, subsequent versions of the data.sql file have no rows of data in the drug_aliases_sources table. Is the data forthcoming or has the data been re-located to another part of the database?
(We also noticed that two other tables, gene_gene_interaction_claims gene_gene_interaction_claim_attributes, are also not populated with data.)

      SELECT
            drug_aliases.alias,
            sources.source_db_name AS alias_source
        FROM drug_aliases
        JOIN drug_aliases_sources ON drug_aliases.id = drug_aliases_sources.drug_alias_id
        JOIN sources ON drug_aliases_sources.source_id = sources.id
        WHERE drug_id = "491e1cea-f7c0-483e-86e3-a13809f2afa3"