Failing test for #1999

test/runtime/samples/each-block-keyed-recursive/_config.js

@@ -0,0 +1,26 @@
+export default {
+	props: {
+		titles: [{ name: 'b' }, { name: 'c' }],
+		tree: [
+			{id: 1, sub: null},
+			{id: 2, sub: [{id: 11}]}
+		]
+	},
+
+	html: `
+		<div>1</div>
+		<div>2\n<div>11</div></div>
+	`,
+
+	test({ assert, component, target }) {
+		component.tree = [
+			{id: 1, sub: null},
+			{id: 2, sub: null}
+		];
+
+		assert.htmlEqual(target.innerHTML, `
+			<div>1</div>
+			<div>2</div>
+		`);
+	}
+};

test/runtime/samples/each-block-keyed-recursive/main.html

@@ -0,0 +1,12 @@
+<script>
+	export let tree;
+</script>
+
+{#each tree as item, i (item.id)}
+	<div>
+		{item.id}
+		{#if item.sub}
+			<svelte:self tree={item.sub}/>
+		{/if}
+	</div>
+{/each}