Thanks, looks like it was implemented in a version newer than mine (3.1). I'll upgrade then, much appreciated!
Setting both primary AND clipboard at the same time would be right, see https://specifications.freedesktop.org/clipboards-spec/clipboards-latest.txt : explicit cut/copy commands (i.e. menu items, toolbar buttons) should always set CLIPBOARD to the currently-selected data (i.e. conceptually copy PRIMARY to CLIPBOARD) explicit cut/copy commands should always set both CLIPBOARD and PRIMARY, even when copying doesn't involve a selection (e.g. a "copy url" -option which explicitly copies an url without...
Setting both primary AND clipboard at the same time would be right, see https://specifications.freedesktop.org/clipboards-spec/clipboards-latest.txt : - explicit cut/copy commands (i.e. menu items, toolbar buttons) should always set CLIPBOARD to the currently-selected data (i.e. conceptually copy PRIMARY to CLIPBOARD) explicit cut/copy commands should always set both CLIPBOARD and PRIMARY, even when copying doesn't involve a selection (e.g. a "copy url" -option which explicitly copies an url without...
Setting both primary AND clipboard at the same time would be right, see https://specifications.freedesktop.org/clipboards-spec/clipboards-latest.txt : " - explicit cut/copy commands (i.e. menu items, toolbar buttons) should always set CLIPBOARD to the currently-selected data (i.e. conceptually copy PRIMARY to CLIPBOARD) explicit cut/copy commands should always set both CLIPBOARD and PRIMARY, even when copying doesn't involve a selection (e.g. a "copy url" -option which explicitly copies an url without...