failing test for #1598

test/runtime/samples/set-null-text-node/_config.js

@@ -0,0 +1,22 @@
+const data = { foo: null };
+
+export default {
+	data,
+
+	html: '',
+
+	test(assert, component, target) {
+		assert.htmlEqual(target.innerHTML, 'hi there');
+
+		data.foo = 'friend';
+		component.set(data);
+
+		assert.htmlEqual(target.innerHTML, 'hi there friend');
+
+		data.foo = null;
+		component.set(data);
+
+		assert.htmlEqual(target.innerHTML, 'hi there');
+
+	}
+};

test/runtime/samples/set-null-text-node/main.html

@@ -0,0 +1 @@
+hi there {foo}