title: How insert value 0 for relation Many-to-One in nest?
body: <p>How to fail a Many to One relationship in a DTO if there is such a relationship in the Post table</p>
  <pre><code>@ManyToOne(() =&gt; Region, region=&gt; region.hoteks)
  
  region: Region;
  </code></pre>
  <ol>
  <li><p>For the validator to write that you need to select a region</p>
  </li>
  <li><p>How can I allow a record with regionId equal to 0 to be inserted into the database</p>
  </li>
  </ol>