docs: private static void resetStore(IPreferenceStore store, String prefix) {
          int start = 0;
          // 99 is paranoia.
          while(start < 99){
              String name = prefix + start;
              if(store.contains(name)){
                  store.setToDefault(name);
              } else {
                  break;
              }
              start ++;
          }
      }