fix(llc): fixed pinned messages

packages/stream_chat/CHANGELOG.md

@@ -1,3 +1,9 @@
+## Upcoming
+
+🐞 Fixed
+
+- Fixed pinned message stream issue.
+
 ## 3.4.0
 
 🐞 Fixed

packages/stream_chat/lib/src/client/channel.dart

@@ -1322,7 +1322,8 @@ class Channel {
 
   /// Remove the ban for the user with given [userID] in the channel.
   @Deprecated(
-      "Use 'unbanMember' instead. This method will be removed in v4.0.0")
+    "Use 'unbanMember' instead. This method will be removed in v4.0.0",
+  )
   Future<EmptyResponse> unbanUser(String userID) => unbanMember(userID);
 
   /// Remove the ban for the member with given [userID] in the channel.
@@ -1736,15 +1737,6 @@ class ChannelClientState {
         ownReactions: oldMessage?.ownReactions,
       );
       addMessage(message);
-
-      if (message.pinned) {
-        _channelState = _channelState.copyWith(
-          pinnedMessages: [
-            ..._channelState.pinnedMessages,
-            message,
-          ],
-        );
-      }
     }));
   }
 
@@ -1796,11 +1788,20 @@ class ChannelClientState {
         newMessages.add(message);
       }
 
+      final _originalPinned = _channelState.pinnedMessages;
+
+      if (message.pinned) {
+        _originalPinned.add(message);
+      } else {
+        _originalPinned.removeWhere((e) => e.id == message.id);
+      }
+
       _channelState = _channelState.copyWith(
         messages: newMessages..sort(_sortByCreatedAt),
         channel: _channelState.channel?.copyWith(
           lastMessageAt: message.createdAt,
         ),
+        pinnedMessages: _originalPinned,
       );
     }