During a "dnf upgrade" today
Import of key(s) didn't help, wrong key(s)?
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error:
Public key for kernel-core-4.11.0-0.rc0.git7.1.fc27.x86_64.rpm is not installedFailing package is: kernel-core-4.11.0-0.rc0.git7.1.fc27.x86_64
GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-26-x86_64