fedmod should offer a verbose mode where it emits a message each time it decides to add a new module level dependency, or a new SRPM component.
This will allow module developers to identify which RPMs are leading to particular module level dependencies being added. (It may be less helpful for SRPMs, since those are added by the resolver).
Currently, running fedmod rpm2module -v ... gives you additional info what components come into play for resolving dependencies but they're not mapped to modules yet.
fedmod rpm2module -v ...
https://pagure.io/modularity/fedmod/pull-request/76
https://pagure.io/modularity/fedmod/pull-request/76 is merged, so I'll close this one accordingly.
Metadata Update from @nphilipp: - Issue close_status updated to: RESOLVED - Issue status updated to: Closed (was: Open)