watchQuery broken with rxjs 6.0.0-rc.0 and rxjs-compat 6.0.0-rc.0

const GetTodo = gql`
  query getTodo {
    getTodo(id: "1234") {
      id
      name
      completed
    }
  }
`;
...
ngOnInit() {
    this._apollo.query({ query: GetTodo })
      .subscribe(x => console.log(x));  
      // OK

    this._apollo.watchQuery<any>({ query: GetTodo })
      .valueChanges
      .subscribe(x => console.log(x)); 
      // DashboardComponent_Host.ngfactory.js? [sm]:1 ERROR TypeError: You provided an invalid object where a stream was expected. You can provide an Observable, Promise, Array, or Iterable.
  }
...

here is the call stack:

here is the package.json (excerpt)

"dependencies": {
    "@angular/animations": "5.2.9",
    "@angular/cdk": "^5.2.3",
    "@angular/common": "5.2.9",
    "@angular/compiler": "5.2.9",
    "@angular/core": "5.2.9",
    "@angular/forms": "5.2.9",
    "@angular/http": "5.2.9",
    "@angular/material": "^5.2.3",
    "@angular/platform-browser": "5.2.9",
    "@angular/platform-browser-dynamic": "5.2.9",
    "@angular/router": "5.2.9",
    "apollo-angular": "^1.0.1",
    "apollo-angular-link-http": "^1.0.2",
    "apollo-cache-inmemory": "^1.1.12",
    "apollo-client": "^2.2.8",
    "core-js": "^2.4.1",
    "graphql": "^0.13.2",
    "graphql-tag": "^2.8.0",
    "jwt-decode": "^2.2.0",
    "rxjs": "6.0.0-rc.0",
    "rxjs-compat": "6.0.0-rc.0",
    "zone.js": "^0.8.23"
  },

when I downgrade to rxjs 5.5.8, it works perfectly.

Sorry that I can’t reproduce the error at stackblitz, since I don’t know any public api. If you know some, I would love to do so. Thanks

[sarora2073]

upgrading to 1.1.0-rc.0 works!

[kamilkisiela]

@bradleybeighton 1.1.0-rc.0 is available right now, about 1.1.0 after the weekend, for sure.