Fix checkbox not marked when current user voted from another device

Author: nuno-vieira

Sources/StreamChatSwiftUI/ChatChannel/MessageList/Polls/PollAttachmentViewModel.swift

@@ -198,7 +198,7 @@ public class PollAttachmentViewModel: ObservableObject, PollControllerDelegate {
 
     /// True, if the current user has voted for the specified option, otherwise false.
     public func optionVotedByCurrentUser(_ option: PollOption) -> Bool {
-        currentUserVote(for: option) != nil
+        poll.hasCurrentUserVoted(for: option)
     }
 
     /// Adds a new option to the poll.

StreamChatSwiftUITests/Tests/ChatChannel/PollAttachmentViewModel_Tests.swift

@@ -92,15 +92,14 @@ final class PollAttachmentViewModel_Tests: StreamChatTestCase {
 
     func test_pollAttachmentViewModel_optionVotedByCurrentUser() {
         // Given
+        let vote = makePollVote()
         let pollController = makePollController()
         let viewModel = PollAttachmentViewModel(
             message: .mock(),
-            poll: .unique,
+            poll: .mock(ownVotes: [vote]),
             pollController: pollController
         )
-        let vote = makePollVote()
         let option = PollOption(id: vote.optionId!, text: "")
-        viewModel.currentUserVotes = [vote]
 
         // When
         let optionVoted = viewModel.optionVotedByCurrentUser(option)