Endpoint's choice is what matters

draft-ietf-quic-transport.md

@@ -2228,7 +2228,7 @@ An endpoint enters a closing period after initiating an immediate close
 they contain a CONNECTION_CLOSE frame (see {{immediate-close}} for details).  An
 endpoint retains only enough information to generate a packet containing a
 CONNECTION_CLOSE frame and to identify packets as belonging to the connection.
-The source and the destination connection ID and the QUIC version are sufficient
+The endpoint's selected connection ID and the QUIC version are sufficient
 information to identify packets for a closing connection; an endpoint can
 discard all other connection state. An endpoint MAY retain packet protection
 keys for incoming packets to allow it to read and process a CONNECTION_CLOSE
@@ -2259,6 +2259,9 @@ connection state.  This results in new packets on the connection being handled
 generically.  For instance, an endpoint MAY send a stateless reset in response
 to any further incoming packets.
 
+The draining and closing periods do not apply when a stateless reset
+({{stateless-reset}}) is sent.
+
 An endpoint is not expected to handle key updates when it is closing or
 draining.  A key update might prevent the endpoint from moving from the closing
 state to draining, but it otherwise has no impact.