fix for #524

src/generators/dom/preprocess.js

@@ -264,7 +264,7 @@ function preprocessChildren ( generator, block, state, node, isTopLevel ) {
 
 		if ( lastChild ) {
 			lastChild.next = child;
-			lastChild.needsAnchor = !child._state.name;
+			lastChild.needsAnchor = !child._state || !child._state.name;
 		}
 
 		lastChild = child;

test/runtime/samples/component-yield-follows-element/Foo.html

@@ -0,0 +1,2 @@
+<div>before</div>
+{{yield}}

test/runtime/samples/component-yield-follows-element/_config.js

@@ -0,0 +1,6 @@
+export default {
+	html: `
+		<div>before</div>
+		test
+	`
+};

test/runtime/samples/component-yield-follows-element/main.html

@@ -0,0 +1,11 @@
+<Foo>test</Foo>
+
+<script>
+	import Foo from './Foo.html';
+
+	export default {
+		components: {
+			Foo
+		}
+	};
+</script>