thanks for the clarification. i was not objecting to the workflow, i was trying to understand so that i can interact with the bug tracker appropriately. I was unaware of the difference between "milestones" and other project tags. I'll try to get that right in the future.

@ebo i'm not sure i understand why you removed the gnupg24 (gnupg-2.4.5) project label. the report indicates that GnuPG 2.4.6 at least (other versions untested, but i didn't see a gnupg24 (gnupg-2.4.6) label in this system) produces MPI artifacts for EdDSA/Ed25519 signatures that are non-compliant with all the known specifications. the 2.2 series appears to retain compatible MPI formats.

after a bit more testing, it looks to me like 2.2.45 will revise the signature packet to use 0x00ed as the MPI header for r, if it receives input from 2.4.6. And 2.4.6 will revise the signature packet to use 0x0100 as the MPI header for r. So the same OpenPGP self-sig will change shape each time it is passed back and forth between the different versions.