title: Typeorm: provide default value for boolean with Mongo database
body: <p>I am using typeorm with Mongo database. I want to provide a default value for a column with <code>boolean</code> datatype.</p>
  
  <p>My entity looks as following:</p>
  
  <pre><code>@ObjectIdColumn()
    id: ObjectID;
  
    @Column()
    name: string;
  
    @Column()
    startDate: Date;
  
    @Column()
    endDate: Date;
  
    @Column()
    inspectionTypeId: string;
  
    @Column()
    questions: string[];
  
    @Column('boolean', {default: true})
    isActive: boolean;
  </code></pre>
  
  <p>However, when I save into the repo, <code>isActive</code> column is not added.</p>