title: Error: Current componentRef is different for cached componentRef
body: <p>I'm developing a NativeScript Angular 2 application.</p>
  
  <p>I have a ListView that contains a bunch of objects. Tapping one of these objects opens up a new Component. After I press the back button to go back to the list and press on another object in the list, I get the following error:</p>
  
  <p>How can I fix this?</p>
  
  <pre><code>CONSOLE ERROR file:///app/tns_modules/@angular/core/./bundles/core.umd.js:1091:24: ERROR Error: Uncaught (in promise): Error: Current componentRef is different for cached componentRef
      deactivate@file:///app/tns_modules/nativescript-angular/router/page-router-outlet.js:105:32 [angular]
      deactiveRouteAndOutlet@file:///app/tns_modules/@angular/router/./bundles/router.umd.js:4578:30 [angular]
      deactiveRouteAndItsChildren@file:///app/tns_modules/@angular/router/./bundles/router.umd.js:4538:40 [angular]
      deactivateRoutes@file:///app/tns_modules/@angular/router/./bundles/router.umd.js:4467:49 [angular]
      file:///app/tns_modules/@angular/router/./bundles/router.umd.js:4429:35 [angular]
      forEach@[native code] [angular]
      deactivateChildRoutes@file:///app/tns_modules/@angular/router/./bundles/router.umd.js:4428:36 [angular]
      activate@file:///app/tns_modules/@angular/router/./bundles/router.umd.js:4415:35 [angular]
      file:///app/tns_modules/@angular/router/./bundles/router.umd.js:4034:30 [angular]
      file:///app/tns_modules/rxjs/Observable.js:110:25 [angular]
      __tryOrSetError@file:///app/tns_modules/rxjs/Subscriber.js:247:20 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:187:42 [angular]
      _next@file:///app/tns_modules/rxjs/Subscriber.js:125:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/map.js:83:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:143:34 [angular]
      _next@file:///app/tns_modules/rxjs/InnerSubscriber.js:23:31 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/map.js:83:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _subscribe@file:///app/tns_modules/rxjs/observable/ScalarObservable.js:49:28 [angular]
      _trySubscribe@file:///app/tns_modules/rxjs/Observable.js:57:35 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:45:40 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      _innerSub@file:///app/tns_modules/rxjs/operator/mergeMap.js:130:55 [angular]
      _tryNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:127:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/mergeMap.js:110:26 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:143:34 [angular]
      _next@file:///app/tns_modules/rxjs/InnerSubscriber.js:23:31 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/map.js:83:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _complete@file:///app/tns_modules/rxjs/operator/reduce.js:119:34 [angular]
      complete@file:///app/tns_modules/rxjs/Subscriber.js:114:27 [angular]
      _complete@file:///app/tns_modules/rxjs/operator/mergeMap.js:135:38 [angular]
      complete@file:///app/tns_modules/rxjs/Subscriber.js:114:27 [angular]
      _subscribe@file:///app/tns_modules/rxjs/observable/ArrayObservable.js:116:32 [angular]
      _trySubscribe@file:///app/tns_modules/rxjs/Observable.js:57:35 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:45:40 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      _innerSub@file:///app/tns_modules/rxjs/operator/mergeMap.js:130:55 [angular]
      _tryNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:127:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/mergeMap.js:110:26 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:143:34 [angular]
      _next@file:///app/tns_modules/rxjs/InnerSubscriber.js:23:31 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/map.js:83:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:143:34 [angular]
      _next@file:///app/tns_modules/rxjs/InnerSubscriber.js:23:31 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyComplete@file:///app/tns_modules/rxjs/operator/every.js:53:30 [angular]
      _complete@file:///app/tns_modules/rxjs/operator/every.js:70:28 [angular]
      complete@file:///app/tns_modules/rxjs/Subscriber.js:114:27 [angular]
      _complete@file:///app/tns_modules/rxjs/operator/mergeMap.js:135:38 [angular]
      complete@file:///app/tns_modules/rxjs/Subscriber.js:114:27 [angular]
      _subscribe@file:///app/tns_modules/rxjs/observable/ArrayObservable.js:116:32 [angular]
      _trySubscribe@file:///app/tns_modules/rxjs/Observable.js:57:35 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:45:40 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      _innerSub@file:///app/tns_modules/rxjs/operator/mergeMap.js:130:55 [angular]
      _tryNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:127:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/mergeMap.js:110:26 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyComplete@file:///app/tns_modules/rxjs/operator/every.js:53:30 [angular]
      _complete@file:///app/tns_modules/rxjs/operator/every.js:70:28 [angular]
      complete@file:///app/tns_modules/rxjs/Subscriber.js:114:27 [angular]
      _complete@file:///app/tns_modules/rxjs/operator/mergeMap.js:135:38 [angular]
      complete@file:///app/tns_modules/rxjs/Subscriber.js:114:27 [angular]
      _subscribe@file:///app/tns_modules/rxjs/observable/ArrayObservable.js:116:32 [angular]
      _trySubscribe@file:///app/tns_modules/rxjs/Observable.js:57:35 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:45:40 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      _innerSub@file:///app/tns_modules/rxjs/operator/mergeMap.js:130:55 [angular]
      _tryNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:127:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/mergeMap.js:110:26 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/map.js:83:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:143:34 [angular]
      _next@file:///app/tns_modules/rxjs/InnerSubscriber.js:23:31 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/map.js:83:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _subscribe@file:///app/tns_modules/rxjs/observable/ScalarObservable.js:49:28 [angular]
      _trySubscribe@file:///app/tns_modules/rxjs/Observable.js:57:35 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:45:40 [angular]
      subscribe@file:///app/tns_modules/rxjs/Observable.js:42:26 [angular]
      _innerSub@file:///app/tns_modules/rxjs/operator/mergeMap.js:130:55 [angular]
      _tryNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:127:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/mergeMap.js:110:26 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      notifyNext@file:///app/tns_modules/rxjs/operator/mergeMap.js:143:34 [angular]
      _next@file:///app/tns_modules/rxjs/InnerSubscriber.js:23:31 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _next@file:///app/tns_modules/rxjs/operator/map.js:83:30 [angular]
      next@file:///app/tns_modules/rxjs/Subscriber.js:89:23 [angular]
      _subscribe@file:///app/tns_modules/rxjs/observable/ScalarObservable.js:49:28 [angular]
  </code></pre>
  
  <p>```</p>