ok.OtherAuthors = null;
  await book.SaveAsync();
</code></pre>
<p>the original <code>author1, author2</code> entities in the <code>Authors</code> collection are unaffected.</p>
<h3 id="entity-deletion-1">Entity deletion:</h3>
<p>if you call <code>book.OtherAuthors.DeleteAllAsync()</code> the respective <code>author1, author2</code> entities are deleted from the <code>Authors</code> collection if they were linked entities (has the same <code>IDs</code>).</p>

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