Missing Pinned Message when using Search Pinned Message api

[qu0cquyen]

Which packages are you using?

stream_chat_flutter, stream_chat_flutter_core, stream_chat

On what platforms did you experience the issue?

Android, iOS

What version are you using?

stream_chat: ^8.2.0
stream_chat_flutter_core: ^8.2.0
stream_chat_flutter: ^8.2.0

What happened?

Use StreamMessageSearchListController to query Pinned Messages with the following filters:

client: chatClient,
      filter: Filter.equal(
        'cid',
        // [arg.cid ?? ''],
        arg.cid ?? '',
      ),
      messageFilter: Filter.equal('pinned', true),
      sort: [
        SortOption(
          'pinned_at',
          direction: SortOption.DESC,
        )
      ],
      limit: 100,

The message responses get from query is correct. However, missing some pinned message.

Bug Video:
https://drive.google.com/file/d/1rs7G4J8EkIX45s9lK1aas5KL4kYtX8bk/view?usp=share_link

This is not happened in web version.

Steps to reproduce

1. Send a message with an attachment and text. 
2. Pin sent message. 
3. Query Pinned Message. 
4. Send another text message 
5. Quickly pin the second message just sent. 
6. Query Pinned Message. => The second message doesn't show up

Supporting info to reproduce

NOTICE: This bug doesn't usually happen.

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