From 603be2449cc9dc5c5db9a58272b6c018a74364be Mon Sep 17 00:00:00 2001
From: 2betop <2betop.cn@gmail.com>
Date: Tue, 25 Feb 2020 16:07:02 +0800
Subject: [PATCH] =?UTF-8?q?=E9=81=BF=E5=85=8D=E8=AE=BE=E7=BD=AE=20undefine?=
 =?UTF-8?q?d=20=E5=90=8E=E6=8A=8A=E5=8F=98=E9=87=8F=E5=88=A0=E4=BA=86?=
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---
 src/renderers/Form/Image.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/renderers/Form/Image.tsx b/src/renderers/Form/Image.tsx
index 41a79a9b4..8a49344a5 100644
--- a/src/renderers/Form/Image.tsx
+++ b/src/renderers/Form/Image.tsx
@@ -533,7 +533,7 @@ export default class ImageControl extends React.Component<
         : newValue;
     }
 
-    onChange((this.emitValue = newValue), undefined, changeImmediately);
+    onChange((this.emitValue = newValue || ''), undefined, changeImmediately);
   }
 
   handleSelect() {