failing test for #1794

test/runtime/samples/component-binding-blowback-d/A.html

@@ -0,0 +1,15 @@
+<B bind:x="y.z"></B>
+
+<script>
+	export default {
+		components: {
+			B: './B.html',
+		},
+
+		data () {
+			return {
+				y: {}
+			}
+		}
+	};
+</script>

test/runtime/samples/component-binding-blowback-d/B.html

@@ -0,0 +1 @@
+<p>whatever</p>

test/runtime/samples/component-binding-blowback-d/_config.js

@@ -0,0 +1,22 @@
+export default {
+	data: {
+		show: false,
+		foo: {}
+	},
+
+	html: ``,
+
+	test (assert, component, target, window) {
+		const changes = [];
+
+		component.on('update', ({ changed }) => {
+			changes.push(changed);
+		});
+
+		component.set({ show: true });
+
+		assert.deepEqual(changes, [
+			{ show: true }
+		]);
+	}
+};

test/runtime/samples/component-binding-blowback-d/main.html

@@ -0,0 +1,11 @@
+{#if show}
+	<A bind:foo="foo"></A>
+{/if}
+
+<script>
+	export default {
+		components: {
+			A: './A.html'
+		}
+	};
+</script>