Created attachment 183145 [details]
Combined screenshots of the help note and the configuration with the relevant parts highlighted

Some 6-7 months back this regression has been introduced. Previously it was possible to have items selected and copied in the clipboard list but keep them separate. Middle click would paste the selection, Ctrl-V would paste the explicitly copied item and both would be kept in the clipboard history. 

The help note for "Selection and clipboard" option explains that options below (Text selection) will control this behaviour, but unfortunately the option will get reset/greyed out when "Selection and clipboard" is unchecked.

To put it differently: when "Selection and clipboard" is unchecked, the "Text selection" option gets reverted to "Only when explicitly copied" and I'm unable to select "Always save in history" as it was previously possible. I presume that someone made the "Text selection" part of the configuration dependent on the "Selection and clipboard" which was not the case in previous versions. 

Attached are the screenshots of the help popup and the config screens. 

Operating System: Fedora Linux 42
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1