add failing but skipped test

test/compiler/set-in-observe-dedupes-renders/Widget.html

@@ -0,0 +1,17 @@
+<div>{{foo.x}}</div>
+
+<script>
+	export default {
+		onrender () {
+			this.observe( 'foo', foo => {
+				const bar = this.get( 'bar' );
+				if ( foo.x !== bar.x ) throw new Error( 'mismatch' );
+			});
+
+			this.observe( 'bar', bar => {
+				const foo = this.get( 'foo' );
+				if ( foo.x !== bar.x ) throw new Error( 'mismatch' );
+			});
+		}
+	};
+</script>

test/compiler/set-in-observe-dedupes-renders/_config.js

@@ -0,0 +1,8 @@
+export default {
+	skip: true, // nice-to-have – tricky though, so skipping for now
+
+	test ( assert, component ) {
+		component.set({ foo: { x: 2 } });
+		component.teardown();
+	}
+};

test/compiler/set-in-observe-dedupes-renders/main.html

@@ -0,0 +1,24 @@
+<Widget foo='{{foo}}' bar='{{bar}}'/>
+
+<script>
+	import Widget from './Widget.html';
+
+	export default {
+		data () {
+			return {
+				foo: { x: 1 },
+				bar: { x: 1 }
+			}
+		},
+
+		onrender () {
+			this.observe( 'foo', foo => {
+				this.set({ bar: foo });
+			});
+		},
+
+		components: {
+			Widget
+		}
+	};
+</script>