Generate SQL doesn't seem to support <insert>...</insert>

I have been using the “” modifier in liquibase and it works very well when I update my schema.

When I tried to use it to generate an update command file it didn’t generate any sql.

When I traced the code I found the following code for liquibase.sqlgenerator.core.InsertDataChangeGenerator

public class InsertDataChangeGenerator extends AbstractSqlGenerator<InsertDataChange.ExecutableStatement> {
    public ValidationErrors validate(InsertDataChange.ExecutableStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
        return new ValidationErrors();
    }

    public Sql[] generateSql(InsertDataChange.ExecutableStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
        return new Sql[0];
    }
}

Is this option supposed to work or does thie generateSql function need to be updated?  This feature is important to my organiztion and I am willing to try to fix it (if it is broken).  If it already works I’m interested in knowing what I am doing wrong.

When I use the tag it works fine and it calls UpdateGenerator.