Description of problem:
There is no way to find out what the defaults are for specific module.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. dnf module list
2. dnf module info $module
No defaults info anywhere
Show some defaults info
This bug appears to have been reported against 'rawhide' during the Fedora 28 development cycle.
Changing version to '28'.
The issue is solved by dnf-3.0.1-1 that was released into rawhide.