fix: select customicon error #7377

Author: tangjinzhou

components/vc-cascader/OptionList/Column.tsx

@@ -4,7 +4,7 @@ import type { DefaultOptionType, SingleValueType } from '../Cascader';
 import { SEARCH_MARK } from '../hooks/useSearchOptions';
 import type { Key } from '../../_util/type';
 import { useInjectCascader } from '../context';
-import { cloneVNode } from 'vue';
+import { cloneElement } from '../../_util/vnode';
 export const FIX_LABEL = '__cascader_fix_label__';
 export interface ColumnProps {
   prefixCls: string;
@@ -152,10 +152,10 @@ export default function Column({
             )}
             <div class={`${menuItemPrefixCls}-content`}>{label}</div>
             {!isLoading && expandIcon && !isMergedLeaf && (
-              <div class={`${menuItemPrefixCls}-expand-icon`}>{cloneVNode(expandIcon)}</div>
+              <div class={`${menuItemPrefixCls}-expand-icon`}>{cloneElement(expandIcon)}</div>
             )}
             {isLoading && loadingIcon && (
-              <div class={`${menuItemPrefixCls}-loading-icon`}>{cloneVNode(loadingIcon)}</div>
+              <div class={`${menuItemPrefixCls}-loading-icon`}>{cloneElement(loadingIcon)}</div>
             )}
           </li>
         );

components/vc-select/TransBtn.tsx

@@ -1,4 +1,4 @@
-import { cloneVNode } from 'vue';
+import { cloneVNode, isVNode } from 'vue';
 import type { VNode, FunctionalComponent, PropType } from 'vue';
 import type { MouseEventHandler } from '../_util/EventInterface';
 import type { VueNode } from '../_util/type';
@@ -24,7 +24,7 @@ const TransBtn: TransBtnType = (props, { slots }) => {
   if (typeof customizeIcon === 'function') {
     icon = customizeIcon(customizeIconProps);
   } else {
-    icon = cloneVNode(customizeIcon as VNode);
+    icon = isVNode(customizeIcon) ? cloneVNode(customizeIcon as VNode) : customizeIcon;
   }
 
   return (