fix: enable spacebar to be typed in opened mode

Author: claytonlin1110

src/BaseSelect/index.tsx

@@ -468,15 +468,14 @@ const BaseSelect = React.forwardRef<BaseSelectRef, BaseSelectProps>((props, ref)
     const isEnterKey = key === 'Enter';
     const isSpaceKey = key === ' ';
 
-    // Enter or Space opens dropdown (ARIA combobox: spacebar should open)
-    if (isEnterKey || isSpaceKey) {
-      // Do not submit form when type in the input; prevent Space from scrolling page
-      if (mode !== 'combobox') {
-        event.preventDefault();
-      }
 
+    if (isEnterKey || isSpaceKey) {
       // We only manage open state here, close logic should handle by list component
       if (!mergedOpen) {
+        // Do not submit form when type in the input
+        if (mode !== 'combobox') {
+          event.preventDefault();
+        }
         triggerOpen(true);
       }
     }