> That's why I ended up with the suffix and letting the sysadmin > (often me, with a different hat on ;-) making that preference > explicit in the APT machinery.
But could it be the a nice feature for apt to have a list apart on the upgrading (I would say then 'replacing') of such cases? User can be alerted more easily during apt upgrade that some packages with a same version could be replaced by the Debian archive ones. apt list --replaceable apt upgrade --no-replaceable :-) Note that it could be replacement from configured alternative source archives. Regards, Patrice