I created experimental project and package:
https://build.opensuse.org/package/s...OS-18/amalthea
This package is my small library. It builds successfully for Fedora (on x86-64 and aarch64), but link 'Download package' leads to the message "No data for home:Vindex:OS-18 / amalthea". This problem does not appear with regular (no library) packages.