title: Xcode 11.4 beta crash on @Published property subscription. What's going on?
body: <p>I do not know why but my code crashes on this $searchTerm publisher. I have many such publishers in my code and everything else works ok. It only does not work in this new Xcode version and works in previous version. If I commented this line and replace it with _searchTerm.projectedValue it starts working as usuall!</p>
  
  <pre><code> _searchTerm.projectedValue
      //$searchTerm
          .debounce(for: .milliseconds(350), scheduler: DispatchQueue.global())
          .flatMap { term in
              self.search(by: term)
          }
          .print("searching")
          .receive(on: DispatchQueue.main)
          .assign(to: \.results, on: self)
          .store(in: &amp;disposables)
  </code></pre>
  
  <p>I have error</p>
  
  <blockquote>
    <p>Fatal error: Call of deleted method</p>
  </blockquote>