find_package: Fixed CMAKE_FIND_PACKAGE_PREFER_CONFIG Module fallback

Fixes: #19361

Source/cmFindPackageCommand.h

@@ -103,7 +103,14 @@ private:
   bool FindModule(bool& found);
   void AddFindDefinition(const std::string& var, const char* val);
   void RestoreFindDefinitions();
-  bool HandlePackageMode();
+
+  enum /*class*/ HandlePackageModeType
+  {
+    Module,
+    Config
+  };
+  bool HandlePackageMode(HandlePackageModeType type);
+
   bool FindConfig();
   bool FindPrefixedConfig();
   bool FindFrameworkConfig();