Fix UIKitCaseStudies' List example (#984)

Author: matteo-girardi

Examples/CaseStudies/UIKitCaseStudies/CounterViewController.swift

@@ -28,7 +28,7 @@ let counterReducer = Reducer<CounterState, CounterAction, CounterEnvironment> {
 
 final class CounterViewController: UIViewController {
   let viewStore: ViewStore<CounterState, CounterAction>
-  var cancellables: Set<AnyCancellable> = []
+  private var cancellables: Set<AnyCancellable> = []
 
   init(store: Store<CounterState, CounterAction>) {
     self.viewStore = ViewStore(store)

Examples/CaseStudies/UIKitCaseStudies/ListsOfState.swift

@@ -63,11 +63,12 @@ final class CountersTableViewController: UITableViewController {
   }
 
   override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
-    let counter = self.viewStore.counters[indexPath.row]
+    let indexPathRow = indexPath.row
+    let counter = self.viewStore.counters[indexPathRow]
     self.navigationController?.pushViewController(
       CounterViewController(
         store: self.store.scope(
-          state: { _ in counter },
+          state: \.counters[indexPathRow],
           action: { .counter(id: counter.id, action: $0) }
         )
       ),