RFC 4880, "OpenPGP Message Format", November 2007

Note: This RFC has been updated by RFC 5581

Errata ID: 2237
Status: Rejected
Type: Technical
Publication Format(s) : TEXT
Reported By: Constantin Hagemeier
Date Reported: 2010-04-28
Rejected by: Sean Turner
Date Rejected: 2010-07-20

Section 11.1. says:

   User Attribute packets and User ID packets may be freely intermixed
   in this section, so long as the signatures that follow them are
   maintained on the proper User Attribute or User ID packet.

It should say:

   User Attribute packets and User ID packets may be freely intermixed
   in this section, so long as the signatures that follow them are
   maintained on the proper User Attribute or User ID packet, and as
   long the first one is a User ID packet.

Notes:

The first one must be a User ID packet and must not be a User Attribute
packet.
--VERIFIER NOTES--
The RFC is correct. It says that they may be freely intermixed, to denote that they may be freely intermixed.

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