Duplicate SessionID

[fattymango]

I'm creating a FIX(4.4) client and I'm trying to implement a retry mechanism that stops the entire initiator and starts it all over again, I'm doing this since the Quickfix auto reconnect doesn't send a ResetOnLogon in the reconnect message.

but when I try to create a new initiator with the same session I get a Duplicate SessionID error, I was able to reproduce the error and it appears to be from this function

func registerSession(s *session) error {
	sessionsLock.Lock()
	defer sessionsLock.Unlock()

	if _, ok := sessions[s.sessionID]; ok { // here
		return errDuplicateSessionID
	}

	sessions[s.sessionID] = s
	return nil
}

it works as expected when I remove the session check.