title: Path collision with certain fields in Mongo Compass
body: <p>I have a schema of authors and books and their addresses as:</p>
  <pre><code>const addr = {
    building: String,
    block: String,
    city: String,
    pin: Number
  }
  
  const authorSchema = mongoose.Schema({
  name: String,
  books: [String],
  address: addr
  });
  
  module.exports = mongoose.model('Author', authorSchema);
  
  </code></pre>
  <p>Now when I try to back up as JSON or CSV, I get error</p>
  <pre><code>Path collision at address.building remaining portion building
  </code></pre>