Can't enable flathub in F29
The instructions at https://flatpak.org/setup/Fedora/ don't work in Fedora 29 (gnome-software-3.30.0-1.fc29). After clicking on the flatpakrepo file, Software displays the following error:
Software just says: Unable to install "(null)" as not supported
Software's loading spinner then continues running forever, instead of stopping as I would expect it to do after this error.