Earlier today I got an update for the kdebase-runtime package, which was orphaned:
2 hours Dropped from repos
$ yaourt -R kdebase-runtime [sudo] password for username: checking dependencies... error: failed to prepare transaction (could not satisfy dependencies) :: kdesudo: removing kdebase-runtime breaks dependency 'kdebase-runtime'
On my system the package is a dependency for the ‘kdesudo’ which lives the ‘antergos’ repo.
antergos/kdesudo 188.8.131.52-1 [installed] A SUdo frontend for KDE
This package should be updated to reflect these changes.
PS. Sorry if this is not the place to report the issue