Fix internal reroutes connected to other groups

tests-ui/tests/groupNode.test.js

@@ -383,6 +383,32 @@ describe("group node", () => {
 			getOutput([nodes.pos.id, nodes.neg.id, nodes.empty.id, nodes.sampler.id])
 		);
 	});
+	test("groups can connect to each other via internal reroutes", async () => {
+		const { ez, graph, app } = await start();
+
+		const latent = ez.EmptyLatentImage();
+		const vae = ez.VAELoader();
+		const latentReroute = ez.Reroute();
+		const vaeReroute = ez.Reroute();
+
+		latent.outputs[0].connectTo(latentReroute.inputs[0]);
+		vae.outputs[0].connectTo(vaeReroute.inputs[0]);
+
+		const group1 = await convertToGroup(app, graph, "test", [latentReroute, vaeReroute]);
+		group1.menu.Clone.call();
+		expect(app.graph._nodes).toHaveLength(4);
+		const group2 = graph.find(app.graph._nodes[3]);
+		expect(group2.node.type).toEqual("workflow/test");
+		expect(group2.id).not.toEqual(group1.id);
+
+		group1.outputs.VAE.connectTo(group2.inputs.VAE);
+		group1.outputs.LATENT.connectTo(group2.inputs.LATENT);
+
+		const decode = ez.VAEDecode(group2.outputs.LATENT, group2.outputs.VAE);
+		ez.PreviewImage(decode.outputs[0]);
+
+		expect((await graph.toPrompt()).output).toEqual({});
+	});
 	test("displays generated image on group node", async () => {
 		const { ez, graph, app } = await start();
 		const nodes = createDefaultWorkflow(ez, graph);

web/extensions/core/groupNode.js

@@ -602,6 +602,10 @@ export class GroupNodeHandler {
 				innerNode = innerNode.getInputNode(0);
 			}
 
+			if (l && GroupNodeHandler.isGroupNode(innerNode)) {
+				return innerNode.updateLink(l);
+			}
+
 			link.origin_id = innerNode.id;
 			link.origin_slot = l?.origin_slot ?? output.slot;
 			return link;