fix: don't call conn handler on dials

libp2p/tcptransport.nim

@@ -17,13 +17,15 @@ type TcpTransport* = ref object of Transport
 
 proc connHandler*(t: Transport,
                   server: StreamServer,
-                  client: StreamTransport): 
+                  client: StreamTransport, 
+                  initiator: bool = false): 
                   Future[Connection] {.async, gcsafe.} =
   let conn: Connection = newConnection(newChronosStream(server, client))
-  let handlerFut = if t.handler == nil: nil else: t.handler(conn)
-  let connHolder: ConnHolder = ConnHolder(connection: conn,
-                                          connFuture: handlerFut)
-  t.connections.add(connHolder)
+  if not initiator:
+    let handlerFut = if t.handler == nil: nil else: t.handler(conn)
+    let connHolder: ConnHolder = ConnHolder(connection: conn,
+                                            connFuture: handlerFut)
+    t.connections.add(connHolder)
   result = conn
 
 proc connCb(server: StreamServer,
@@ -61,6 +63,6 @@ method dial*(t: TcpTransport,
              Future[Connection] {.async, gcsafe.} =
   ## dial a peer
   let client: StreamTransport = await connect(address)
-  result = await t.connHandler(t.server, client)
+  result = await t.connHandler(t.server, client, true)
 
 method handles*(t: TcpTransport, address: MultiAddress): bool {.gcsafe.} = true