Drain queue before emitting connect event. #5259
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The kind of change this PR does introduce
Fixes: #5258
Current behavior
When the retries option is enabled in the Socket.IO client, the client emits the initial event twice inside the 'connect' handler.
New behavior
The event inside the 'connect' handler should be emitted only once, regardless of whether the retries option is enabled or disabled.
Other information (e.g. related issues)
We can drain the queue before emitting the connect event.