At the moment, the lowest nginx version 1.20 has the highest epoch 2, while the newer nginx versions 1.22 and 1.24 have epoch 1.
This is a bit strange and can lead to problems if you work with pure rpm files (without modularity) as you will always get nginx-1.20 instead of the latest nginx-1.24.
Bumping nginx epoch for 1.22 & 1.24 to 2 should be quite easy and should not have any critical side effects on running systems.