Printer defaults to single page printing
Failing nodes: las113, las118 (Fedora 27, 28)
Summary
Default for printing is no-duplex
Steps to reproduce
Print file from okular
What is the expected correct behaviour?
Duplex, long-edge as default.
Possible fixes
Either edit the files in the client
role appropriately or change the default settings locally in CUPS (https://localhost:631) via KDE's printing dialogue and diff the files with the aforementioned.