Getting "-r and -R are incompatible options" despite not using -R

[lectrode]

$ notify-desktop -i down -u critical "critical subject" "critical body"
4
$ notify-desktop -i down -r 4 "critical subject" "new body"
-r and -R are incompatible options

Did the introduction of -R break -r? Or am I doing something wrong?

Testing on Manjaro KDE with latest updates

[lectrode]

thank you!