Ensure clicking a ComboboxOption after filtering the options, correctly triggers a change

packages/@headlessui-vue/src/hooks/use-disposables.ts

@@ -0,0 +1,12 @@
+import { onUnmounted } from 'vue'
+import { disposables } from '../utils/disposables'
+
+/**
+ * The `useDisposables` hook returns a `disposables` object that is disposed
+ * when the component is unmounted.
+ */
+export function useDisposables() {
+  let d = disposables()
+  onUnmounted(() => d.dispose())
+  return d
+}

packages/@headlessui-vue/src/hooks/use-frame-debounce.ts

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+import { useDisposables } from './use-disposables'
+
+/**
+ * Schedule some task in the next frame.
+ *
+ * - If you call the returned function multiple times, only the last task will
+ *   be executed.
+ * - If the component is unmounted, the task will be cancelled.
+ */
+export function useFrameDebounce() {
+  let d = useDisposables()
+
+  return (cb: () => void) => {
+    d.dispose()
+    d.nextFrame(() => cb())
+  }
+}

packages/@headlessui-vue/src/mouse.ts

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+export enum MouseButton {
+  Left = 0,
+  Right = 2,
+}