feat: no use fullHeight if content is less

Author: zombieJ

package.json

@@ -43,7 +43,7 @@
     "rc-animate": "^2.10.0",
     "rc-trigger": "^2.6.5",
     "rc-util": "^4.11.0",
-    "rc-virtual-list": "^0.0.0-alpha.23",
+    "rc-virtual-list": "^0.0.0-alpha.24",
     "warning": "^4.0.3"
   },
   "devDependencies": {

src/OptionList.tsx

@@ -11,8 +11,6 @@ import {
 } from './interface';
 import { RawValueType, FlattenOptionsType } from './interface/generator';
 
-// TODO: Not use virtual list if options count is less than a certain number
-
 export interface OptionListProps<OptionsType extends object[]> {
   prefixCls: string;
   id: string;
@@ -224,6 +222,7 @@ const OptionList: React.RefForwardingComponent<
         data={flattenOptions}
         height={height}
         itemHeight={itemHeight}
+        fullHeight={false}
         onMouseDown={onListMouseDown}
         onScroll={onScroll}
       >