Steven J. Murdoch wrote:
In this particular example, it's not that much of a problem since they both came from the Debian project, but say a third-party APT repository publishes a package with the same version number as an official Debian package. If that repository goes offline, how can I find out whether the package came from Debian or from the third party?
I suppose that if you include in sources.list to the old distribution archive repositories (which I think goes at least as far back as slink) then any packages which still aren't recognized are presumably from a third party repository. (This is a prime example of why I was disappointed to learn that some of the old dist archives will be going to source only.)