all tests passing. phase one complete, i guess

src/compiler/compile/render_dom/Renderer.ts

@@ -181,7 +181,11 @@ export default class Renderer {
 			});
 		});
 
-		return Array.from(deps)
+		// TODO ideally globals etc wouldn't be here in the first place
+		const filtered = Array.from(deps).filter(n => this.context_lookup.has(n));
+		if (!filtered.length) return null;
+
+		return filtered
 			.map(n => x`$$invalidate(${this.context_lookup.get(n).index}, ${n})`)
 			.reduce((lhs, rhs) => x`${lhs}, ${rhs}}`);
 	}

src/compiler/compile/render_dom/invalidate.ts

@@ -19,6 +19,7 @@ export function invalidate(renderer: Renderer, scope: Scope, node: Node, names:
 			!variable.module &&
 			(
 				variable.referenced ||
+				variable.subscribable ||
 				variable.is_reactive_dependency ||
 				variable.export_name ||
 				variable.name[0] === '$'

test/vars/samples/store-referenced/_config.js

@@ -8,7 +8,7 @@ export default {
 				module: false,
 				mutated: false,
 				reassigned: false,
-				referenced: true,
+				referenced: false,
 				referenced_from_script: false,
 				writable: true
 			},