Revert syntax updates to fix failing test

Author: dacharyc

examples/ios/SwiftUICatalog/Views/Authenticate.swift

@@ -113,7 +113,7 @@ struct FlexSyncContentView: View {
                     let dogSubscriptionExists = subs.first(named: "dogs")
                     // Check whether the subscription already exists. Adding it more
                     // than once causes an error.
-                    if peopleSubscriptionExists && dogSubscriptionExists {
+                    if (peopleSubscriptionExists != nil) && (dogSubscriptionExists != nil) {
                         // Existing subscriptions found - do nothing
                         return
                     } else {

source/examples/generated/swiftui/Authenticate.snippet.flexible-sync-view-with-client-reset-handling.swift.rst

@@ -31,7 +31,7 @@
                        let dogSubscriptionExists = subs.first(named: "dogs")
                        // Check whether the subscription already exists. Adding it more
                        // than once causes an error.
-                       if peopleSubscriptionExists && dogSubscriptionExists {
+                       if (peopleSubscriptionExists != nil) && (dogSubscriptionExists != nil) {
                            // Existing subscriptions found - do nothing
                            return
                        } else {