Am Thursday, dem 22. Nov 2007 schrieb Sam Liddicott:
With the GPL3 this is not true: at some time in the distribution chain, derived works may have certain additional restrictions added, thus licensing the combined work under the AGPL such that when an original contributor receives the derived work with enhancements to his own work, he may not distribute any combination of his work with any of those enhancements unless he does so with the additional restrictions of the AGPL.
If the licensor finds this disparity objectionable then he may prefer to use the GPL2.
I believe that this implication is not widely understood and because ealier versions of the GPL are widely known to prohibit the addition of extra restrictions, this implication is also unexpected.
Oh, that is anything but unexpected for someone, who followed the drafting process. Section 7 of GPLv3 allowed some additional restrictions right from draft 1. Actually those additional restrictions were softened later.