From fec6e4f3c83df7a5e004b0e35d3ae3a89f2a2d6a Mon Sep 17 00:00:00 2001
From: Pan <panfree23@gmail.com>
Date: Mon, 14 Jan 2019 14:07:03 +0800
Subject: [PATCH] fix[ThemePicker]: fixed bug when oldVal is null

---
 src/components/ThemePicker/index.vue | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/components/ThemePicker/index.vue b/src/components/ThemePicker/index.vue
index e797d6c2..5d1ff8bd 100644
--- a/src/components/ThemePicker/index.vue
+++ b/src/components/ThemePicker/index.vue
@@ -18,7 +18,8 @@ export default {
     }
   },
   watch: {
-    theme(val, oldVal) {
+    theme(val) {
+      const oldVal = this.theme
       if (typeof val !== 'string') return
       const themeCluster = this.getThemeCluster(val.replace('#', ''))
       const originalCluster = this.getThemeCluster(oldVal.replace('#', ''))