fix: accordion initial expand with multiple expand

es-ds-components/components/es-accordion-list.vue

@@ -14,8 +14,7 @@ const props = withDefaults(defineProps<Props>(), {
     variant: 'default',
 });
 
-// eslint-disable-next-line vue/require-prop-types
-const model = defineModel();
+const model = defineModel<string>();
 
 // get the list of elements provided as children to the default slot
 const initialChildren = useSlots().default?.() || [];
@@ -29,7 +28,9 @@ initialChildren.forEach((child) => {
     }
 });
 
-const activeIndex = ref();
+type ActiveChildren = null | number | number[];
+
+const activeIndex: Ref<ActiveChildren> = ref(null);
 
 watch(model, (newVal) => {
     if (newVal) {
@@ -39,19 +40,30 @@ watch(model, (newVal) => {
 
 const accordionTabs = children.map((child, index) => {
     if (child.props.id === props.initialExpandedId || child.props.id === model.value) {
-        activeIndex.value = index;
+        if (props.allowMultipleExpand) {
+            activeIndex.value = [index];
+        } else {
+            activeIndex.value = index;
+        }
     }
     return child.children;
 });
 
-const updateActiveIndex = (index: any) => {
+const updateActiveIndex = (index: ActiveChildren) => {
     if (model.value) {
-        model.value = children[index]?.props.id || '';
+        if (typeof index === 'number') {
+            model.value = children[index]?.props.id || '';
+        } else if (index === null) {
+            model.value = '';
+        }
+        // There's another case where index will be an array. In that case, v-model is unsupported as specified
+        // in the documentation, so no update is made
     }
 };
 </script>
 
 <template>
+    <!-- @vue-expect-error PrimeVue's type information is wrong -->
     <accordion
         :multiple="allowMultipleExpand"
         :active-index="activeIndex"