TGCalls connection issue

[rojvv]

The actual issue

An error is thrown with the message Connection already started when TGCalls.start is called while the TGCalls class got an error when calling joinVoiceCall and didn't get the transport.

Reproducing

const tgcalls = new TGCalls();
tgcalls.joinVoiceCall = (p) => { throw new Error(); };
(async() => { await tgcalls.start(); await tgcalls.start(); })()

[rojvv]

Thank you very ton!