title: Web api use ForeignKey return NULL
body: <p>I create a simple web api 'get' work good, but when i try to add ForeignKey with Relation One-to-Many One Article many ArticleBody the result of API come with article: null, don't return the description of article why?</p>
  <pre><code>[
    {
      &quot;id&quot;: 4,
      &quot;title&quot;: &quot;Fineco - Corporate Business Template&quot;,
      &quot;creationDate&quot;: &quot;2020-07-18T00:00:00&quot;,
      &quot;updateDate&quot;: null,
      &quot;images&quot;: null,
      &quot;articleId&quot;: 3,
      &quot;article&quot;: null
    },
  ]
  
  // GET: api/Articles
          [HttpGet]
          public async Task&lt;ActionResult&lt;IEnumerable&lt;Articles&gt;&gt;&gt; GetArticles()
          {
              return await _context.Articles.ToListAsync();
          }
  
  public partial class Articles
      {
          public int Id { get; set; }
          public string Title { get; set; }
          public DateTime? CreationDate { get; set; }
          public DateTime? UpdateDate { get; set; }
          public string Images { get; set; }
          public int? ArticleId { get; set; }
          
          [ForeignKey(nameof(ArticleId))]
          //[InverseProperty(nameof(ArticlesBody.Articles))]
          public virtual ArticlesBody Article { get; set; }
      }
  
  
  public partial class ArticlesBody
  {
      public ArticlesBody()
      {
          Articles = new HashSet&lt;Articles&gt;();
      }
  
      public int Id { get; set; }
      public string Article { get; set; }
  
      public virtual ICollection&lt;Articles&gt; Articles { get; set; }
  }
  </code></pre>
  <p>this is part of DBContext for Articles:</p>
  <p>entity.Property(e =&gt; e.Images)
  .HasColumnName(&quot;images&quot;)
  .HasMaxLength(50)
  .IsUnicode(false);</p>
  <pre><code>            entity.Property(e =&gt; e.Title)
                  .HasColumnName(&quot;title&quot;)
                  .HasMaxLength(50);
  
              entity.Property(e =&gt; e.UpdateDate)
                  .HasColumnName(&quot;updateDate&quot;)
                  .HasColumnType(&quot;datetime&quot;);
  
              entity.HasOne(d =&gt; d.Article)
                  .WithMany(p =&gt; p.Articles)
                  .HasForeignKey(d =&gt; d.ArticleId)
                  .HasConstraintName(&quot;FK_Articles_ArticlesBody&quot;);
  
          
  </code></pre>