title: Firestore collection deleted SOMETIMES if all documents are deleted...?
body: <p>I am really confused on this. If I programitically delete all the documents from a Firestore collection, the collection itself is also deleted:</p>
  
  <pre class="lang-js prettyprint-override"><code>this.afs.collection(myCollecton).doc(docId).delete();
  </code></pre>
  
  <p>But if I delete all the documents using the Firebase console online, I don't always see the collection deleted! I literally deleted all the documents from a collection and it still was in the console. I could immediately create another document in the collection. But <em>sometimes</em> the collection did just go away...?!</p>
  
  <p>I read through some posts like <a href="https://stackoverflow.com/questions/47860812/deleting-all-documents-in-firestore-collection">Deleting all documents in Firestore collection</a> but have not seen anything to account for this.</p>
  
  <p>Since a collection must have a document it, I guess it's inferred that deleting all of the documents would delete the collection. The <a href="https://firebase.google.com/docs/firestore/manage-data/delete-data" rel="nofollow noreferrer">delete-data</a> documentation doesn't mention this, but even so, why do I only sometimes see the collection deleted???</p>