less strict ctor delete

Framework/StackInterface/SecondaryView.h

@@ -98,10 +98,12 @@ namespace corsika::stack {
   private:
     /**
      * This is not accessible, since we don't want to allow creating a
-     * new stack.
+     * new stack. We don't use templates here, because templates are a better match
+     * than any overload, except if the overload is exact. This prevents conversion.
      */
-    template <typename... Args>
-    SecondaryView(Args... args) = delete;
+    SecondaryView() = delete;
+    SecondaryView(SecondaryView&&) = delete;
+    SecondaryView(const SecondaryView&) = delete;
 
   public:
     /**