Is there a way to know that redis has dropped pubsub subscription?

[parsifal-47]

Hi All,
I think I am doing something basic:

updates := redisConnection.PSubscribe(c.ctx,
"__keyspace@0__:mykey")
defer updates.Close()
updatesChannel := updates.Channel()

_, err := updates.Receive(c.ctx)
if err != nil {
log.Error().AnErr("error", err).Msg("subscription confirmation")
return
}

for {
select {
case <-updatesChannel:
...

but what I see sometimes is:

redis: 2022/01/05 19:49:52 pubsub.go:159: redis: discarding bad PubSub connection: redis: can't parse "\x00

My key is getting updates but the connection is already discarded and I do not get anything on updatesChannel. I tried periodic pings, it doesn't help because pings succeeded.

Is there a way to know that subscription has been dropped?

Thank you!