But they are available there, see Show sailfishos:chum / sailfishos-chum-gui - SailfishOS Open Build Service.
Hence there is no need to wait for anything, which BTW never happens auto-magically; i.e., someone has to configure any new SailfishOS release for a specific repository at the SailfishOS-OBS.
Thus I keep on waiting for a proper bug report at GitHub.