Upgrade from 5.2.8 to 5.2.9 and from 5.3.1 to 5.3.2 is broken in the same fashion, only instead of "... than Monty Program " the error message says "... than OurDelta".
I believe the bug reporter correctly pointed at the root of the problem: we are comparing Vendor of the new package with the Packager of the old one.
Upgrade from 5.2.8 to 5.2.9 and from 5.3.1 to 5.3.2 is broken in the same fashion, only instead of "... than Monty Program " the error message says "... than OurDelta".
I believe the bug reporter correctly pointed at the root of the problem: we are comparing Vendor of the new package with the Packager of the old one.