"COPR Repo for Fedora 27+" seems not to work

[LicoMonch]

FYI, just tried on Fedora 29:

$ sudo dnf copr enable axeld/nvidia-xrun
[sudo] password for licomonch: 

You are about to enable a Copr repository. Please note that this
repository is not part of the main distribution, and quality may vary.

The Fedora Project does not exercise any power over the contents of
this repository beyond the rules outlined in the Copr FAQ at
<https://docs.pagure.org/copr.copr/user_documentation.html#what-i-can-build-in-copr>,
and packages are not held to any quality or security level.

Please do not file bug reports about these packages in Fedora
Bugzilla. In case of problems, contact the owner of this repository.

Do you really want to enable copr.fedorainfracloud.org/axeld/nvidia-xrun? [y/N]: y
Repository successfully enabled.

$ sudo dnf install nvidia-xrun
Copr repo for nvidia-xrun owned by axeld                                                                                                                                           180  B/s | 341  B     00:01    
Failed to synchronize cache for repo 'axeld-nvidia-xrun', ignoring this repo.
Last metadata expiration check: 0:20:08 ago on Fri 15 Feb 2019 11:01:48 PM CET.
No match for argument: nvidia-xrun
Error: Unable to find a match

$ sudo dnf --refresh upgrade
Copr repo for nvidia-xrun owned by axeld                                                                                                                                           173  B/s | 341  B     00:01    
Fedora Modular 29 - x86_64                                                                                                                                                          12 kB/s |  27 kB     00:02    
Fedora Modular 29 - x86_64 - Updates                                                                                                                                                10 kB/s |  26 kB     00:02    
Fedora 29 - x86_64 - Updates                                                                                                                                                        11 kB/s |  26 kB     00:02    
Fedora 29 - x86_64                                                                                                                                                                  11 kB/s |  28 kB     00:02    
RPM Fusion for Fedora 29 - Free - Updates                                                                                                                                          5.8 kB/s | 8.2 kB     00:01    
RPM Fusion for Fedora 29 - Free                                                                                                                                                    8.7 kB/s |  10 kB     00:01    
RPM Fusion for Fedora 29 - Nonfree - Updates                                                                                                                                       7.1 kB/s | 8.2 kB     00:01    
RPM Fusion for Fedora 29 - Nonfree                                                                                                                                                 8.9 kB/s |  10 kB     00:01    
Failed to synchronize cache for repo 'axeld-nvidia-xrun', ignoring this repo.
Dependencies resolved.
Nothing to do.
Complete!

The OBS repo worked without any problem.

[michelesr]

@LicoMonch check the new repository