Re: [quicwg/base-drafts] ACK frames PN space editorial (#3313)

[Martin Thomson <[e-mail]>]

martinthomson commented on this pull request.

This is better than #3314, I think, though I have a suggestion here.

> @@ -4747,10 +4747,9 @@ QUIC acknowledgements are irrevocable.  Once acknowledged, a packet remains
 acknowledged, even if it does not appear in a future ACK frame.  This is unlike
 TCP SACKs ({{?RFC2018}}).
 
-It is expected that a sender will reuse the same packet number across different
-packet number spaces.  ACK frames only acknowledge the packet numbers that were
-transmitted by the sender in the same packet number space of the packet that the
-ACK was received in.
+An ACK frame acknowledges packets in the same packet number space as the packet
+in which it is contained.  As such, the same packet number can be acknowledged

```suggestion
in which it is contained.  Packets from different packet number spaces can be identified using the same numeric value.
```

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