OEL-4185: Fixed mega menu.

Author: tibi2303

tools/webpack/twig-wrapper-loader.cjs

@@ -4,6 +4,29 @@ module.exports = function twigWrapperLoader(source) {
 
   let code = source;
 
+  code = code.replace(
+    /templates\.set\((['"][^'"]+['"]), (template\d+)\);/g,
+    "templates.set($1, () => $2);",
+  );
+
+  code = code.replace(
+    /template\.loadTemplate = \(executionContext, identifier\) => {\s*return templates.has\(identifier\) \? Promise\.resolve\(templates\.get\(identifier\)\) : baseLoadTemplate\(executionContext, identifier\);\s*};/,
+    `template.loadTemplate = (executionContext, identifier) => {
+  if (!templates.has(identifier)) {
+    return baseLoadTemplate(executionContext, identifier);
+  }
+
+  const candidate = templates.get(identifier);
+  const resolved = typeof candidate === 'function' ? candidate() : candidate;
+
+  if (!resolved) {
+    return baseLoadTemplate(executionContext, identifier);
+  }
+
+  return Promise.resolve(resolved);
+};`,
+  );
+
   code = `import environment from '${environmentModulePath}';\n${code}`;
 
   if (code.includes("export default template;")) {