All reports of transitional-package-should-be-oldlibs-optional for the archive. The extended description of this tag is:
The package appears to be a transitional package, but it is not priority optional and in the oldlibs section.
Using oldlibs/optional assists package managers in handling the transition package correctly.
Refer to https://bugs.debian.org/645438 and Debian Developer's Reference section 6.7.7 (Make transition packages deborphan compliant) for details.
This tag has not been emitted in any package tested by Lintian.