Fix extension widgets not working.

web/extensions/core/groupNode.js

 import { app } from "../../scripts/app.js";
 import { api } from "../../scripts/api.js";
-import { getWidgetType } from "../../scripts/widgets.js";
 import { mergeIfValid } from "./widgetInputs.js";
 
 const GROUP = Symbol();
@@ -332,7 +331,7 @@ export class GroupNodeConfig {
 		const converted = new Map();
 		const widgetMap = (this.oldToNewWidgetMap[node.index] = {});
 		for (const inputName of inputNames) {
-			let widgetType = getWidgetType(inputs[inputName], inputName);
+			let widgetType = app.getWidgetType(inputs[inputName], inputName);
 			if (widgetType) {
 				const convertedIndex = node.inputs?.findIndex(
 					(inp) => inp.name === inputName && inp.widget?.name === inputName

web/scripts/app.js

 import { ComfyLogging } from "./logging.js";
-import { ComfyWidgets, getWidgetType } from "./widgets.js";
+import { ComfyWidgets } from "./widgets.js";
 import { ComfyUI, $el } from "./ui.js";
 import { api } from "./api.js";
 import { defaultGraph } from "./defaultGraph.js";
@@ -1377,6 +1377,20 @@ export class ComfyApp {
 		await this.#invokeExtensionsAsync("registerCustomNodes");
 	}
 
+	getWidgetType(inputData, inputName) {
+		const type = inputData[0];
+
+		if (Array.isArray(type)) {
+			return "COMBO";
+		} else if (`${type}:${inputName}` in this.widgets) {
+			return `${type}:${inputName}`;
+		} else if (type in this.widgets) {
+			return type;
+		} else {
+			return null;
+		}
+	}
+
 	async registerNodeDef(nodeId, nodeData) {
 		const self = this;
 		const node = Object.assign(
@@ -1391,7 +1405,7 @@ export class ComfyApp {
 					const type = inputData[0];
 
 					let widgetCreated = true;
-					const widgetType = getWidgetType(inputData, inputName);
+					const widgetType = self.getWidgetType(inputData, inputName);
 					if(widgetType) {
 						if(widgetType === "COMBO") {
 							Object.assign(config, self.widgets.COMBO(this, inputName, inputData, app) || {});

web/scripts/widgets.js

@@ -23,20 +23,6 @@ function getNumberDefaults(inputData, defaultStep, precision, enable_rounding) {
 	return { val: defaultVal, config: { min, max, step: 10.0 * step, round, precision } };
 }
 
-export function getWidgetType(inputData, inputName) {
-	const type = inputData[0];
-
-	if (Array.isArray(type)) {
-		return "COMBO";
-	} else if (`${type}:${inputName}` in ComfyWidgets) {
-		return `${type}:${inputName}`;
-	} else if (type in ComfyWidgets) {
-		return type;
-	} else {
-		return null;
-	}
-}
-
 export function addValueControlWidget(node, targetWidget, defaultValue = "randomize", values, widgetName, inputData) {
 	let name = inputData[1]?.control_after_generate;
 	if(typeof name !== "string") {