broadcast Send does not return if you await it

[menasheh]

Bug report

When using realtime C# to send broadcast messages, it works fine as long as you don't await it. If you await the send call, it never returns.

To Reproduce

See minimal repro project and readme: https://github.com/menasheh/supabase-sandbox
Follow instructions, run the C# project in https mode and trigger the realtime endpoint with swagger. It will hang.

Expected behavior

Send call should return when the broadcast has completed when awaited

System information

• OS: Windows 10
• Browser N/A
• Version of supabase-csharp: 6.0.4

Additional context

N/A