Hydrogen Pack seems to make it possible to accidentally edit locked classes (I use OxyMade).
If you go to an advanced settings tab of an unlocked class, then select a locked class, the settings of the locked class are then editable because you are kept on that Advanced settings tab, rather than being taken back to Primary tab.
Is this by design? A bug? Am I doing it wrong?
But even switching off “preserve advanced tabs” setting in Hydrogen settings, which I believe is the feature we are talking about, it still does this.