So siehts ganz gut aus !

node_modules/pug/test/regression-2436/index.test.js

@@ -0,0 +1,17 @@
+const pug = require('../../');
+
+test('#2436 - block with a same name extends from the same layout in nesting', () => {
+    const output = pug.renderFile(
+        __dirname + '/issue1.pug',
+        {pretty: true}
+    );
+    expect(output).toMatchSnapshot();
+});
+
+test('#2436 - block with a same name extends from different layout in nesting', () => {
+    const output = pug.renderFile(
+        __dirname + '/issue2.pug',
+        {pretty: true}
+    );
+    expect(output).toMatchSnapshot();
+});