app.stateClear() for setRoot()

ionic/components/app/app.ts

@@ -63,6 +63,10 @@ export class IonicApp {
     }
   }
 
+  stateClear() {
+    this.router.stateClear();
+  }
+
   /**
    * Register a known component with a key, for easy lookups later.
    */

ionic/components/view/view-controller.ts

@@ -140,6 +140,8 @@ export class ViewController extends Ion {
       return Promise.resolve();
     }
 
+    this.app.stateClear();
+
     // if animate has not been set then default to false
     opts.animate = opts.animate || false;