Fix bug where react UI unwinds itself

Classes/Issues/Comments/IssueCommentSectionController.swift

@@ -209,10 +209,10 @@ final class IssueCommentSectionController: ListBindingSectionController<IssueCom
         generator.impactOccurred()
         client.react(subjectID: object.id, content: content, isAdd: isAdd) { [weak self] result in
             switch result {
-            case .success:
+            case .success: break
+            case .error(let error):
                 self?.reactionMutation = previousReaction
                 self?.update(animated: trueUnlessReduceMotionEnabled)
-            case .error(let error):
                 Squawk.show(error: error)
             }
         }