Fix open group config message syncing

Session/Open Groups/JoinPublicChatVC.swift

@@ -132,10 +132,12 @@ final class JoinPublicChatVC : BaseVC, UIPageViewControllerDataSource, UIPageVie
         }
         isJoining = true
         ModalActivityIndicatorViewController.present(fromViewController: navigationController!, canCancel: false) { [weak self] _ in
-            Storage.shared.write(with: { transaction in
+            Storage.shared.write { transaction in
                 OpenGroupManager.shared.add(with: urlAsString, using: transaction)
                 .done(on: DispatchQueue.main) { [weak self] _ in
                     self?.presentingViewController!.dismiss(animated: true, completion: nil)
+                    let appDelegate = UIApplication.shared.delegate as! AppDelegate
+                    appDelegate.forceSyncConfigurationNowIfNeeded().retainUntilComplete() // FIXME: It's probably cleaner to do this inside addOpenGroup(...)
                 }
                 .catch(on: DispatchQueue.main) { [weak self] error in
                     self?.dismiss(animated: true, completion: nil) // Dismiss the loader
@@ -148,10 +150,7 @@ final class JoinPublicChatVC : BaseVC, UIPageViewControllerDataSource, UIPageVie
                     self?.isJoining = false
                     self?.showError(title: title, message: message)
                 }
-            }, completion: {
-                let appDelegate = UIApplication.shared.delegate as! AppDelegate
-                appDelegate.forceSyncConfigurationNowIfNeeded().retainUntilComplete() // FIXME: It's probably cleaner to do this inside addOpenGroup(...)
-            })
+            }
         }
     }