Create Public Thread with meta never sends meta to firebase server

[AntonijoDev]

1. Is the bug present in the demo Chat SDK project?
   You don't use method with meta param
2. What modifications have you made to the Chat SDK?
   None
3. iOS Version? Device or simulator?
   device ios 14.2
4. Steps taken to reproduce the problem:
   Send meta param while creating public thread
5. Expected result:
   Meta gets written on firebase server /threads/tid/meta/
6. Actual result:
   No new keys in meta section
7. Comments:
   Going through the chat code I see that only meta that is serialized is meta defined in serialize method of CCThreadWrapper. I was trying to get around the problem by using firebase API and writing directly to the meta but that just overrides existing meta. Please help, what should I do? I cant use update cause the keys don't exist yet. Should I expand selialize method? Anf if yes, how can I do that from my project?

[AJITHAS-842]

Is this issue resolved?