From f99954713062f584984bd8a45059b542d8151e9a Mon Sep 17 00:00:00 2001
From: "kevinq.qk" <kevinq.qk@alibaba-inc.com>
Date: Sat, 2 Feb 2019 15:11:58 +0800
Subject: [PATCH] Fixed a bug.The selector have a empty option, when use enum
 and the default value is 0 or false or ''.

---
 src/components/widgets/SelectWidget.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/widgets/SelectWidget.js b/src/components/widgets/SelectWidget.js
index a5ef160355..bb20ebb215 100644
--- a/src/components/widgets/SelectWidget.js
+++ b/src/components/widgets/SelectWidget.js
@@ -91,7 +91,7 @@ function SelectWidget(props) {
         const newValue = getValue(event, multiple);
         onChange(processValue(schema, newValue));
       }}>
-      {!multiple && !schema.default && <option value="">{placeholder}</option>}
+      {!multiple && schema.default === undefined && <option value="">{placeholder}</option>}
       {enumOptions.map(({ value, label }, i) => {
         const disabled = enumDisabled && enumDisabled.indexOf(value) != -1;
         return (