This is a tracking bug for Change: Foomatic-Rip rejects unknown values For more details, see: https://fedoraproject.org/wiki/Changes/FoomaticRipRejectsUnknownValues The filter foomatic-rip will reject any values of PPD options FoomaticRIPCommandLine, FoomaticRIPCommandLinePDF, and FoomaticRIPOptionSetting. Users are able to scan drivers of their installed printers by the tool foomatic-hash, which outputs a file which is used for allowing the found values for the filter. If you encounter a bug related to this Change, please do not comment here. Instead create a new bug and set it to block this bug.
I have filed the issue based on accepted FESCO ticket related to the change - https://pagure.io/fesco/issue/3458 - because of feature deadline being today and the ticket was missing.
The builds are in F43+ stable.