Apply suggestion from @DrJKL

ComfyUI_frontend is moving to one LGraph instance per workflow tab
(Comfy-Org/ComfyUI_frontend#21571), and app.clean() clears the new graph
before any extension hook fires. The instance patch on app.graph.clear
only reaches the graph that existed at startup, so components would not
be reloaded for later workflows.

Patch clear on the graph prototype and reload components when the
cleared graph is the current root graph. This also stops a subgraph
clear from clearing the root graph, which the old wrapper did by always
calling orig_clear on app.graph.

Amp-Thread-ID: https://ampcode.com/threads/T-d545a10a-f002-4dc5-9a74-f6402a836919

js/comfyui-manager.js

@@ -1536,10 +1536,11 @@ app.registerExtension({
 		});
 	},
 	async setup() {
-		let orig_clear = app.graph.clear;
-		app.graph.clear = function () {
-			orig_clear.call(app.graph);
-			load_components();
+		const graphProto = Object.getPrototypeOf(app.graph);
+		const orig_clear = graphProto.clear;
+		graphProto.clear = function () {
+			orig_clear.apply(this, arguments);
+			if (this === app.graph) load_components();
 		};
 
 		load_components();