Pull request #2599: BI-102974 fix: 不设置RGB直接去色轮点选HSL报错

Merge in VISUAL/fineui from ~WINDY/fui:master to master

* commit 'c1e14c77508a6e02fedced993c0ee1a1657fc0ca':
  BI-102974 fix: 直接去色轮点选值报错

src/case/colorchooser/farbtastic/farbtastic.js

@@ -16,6 +16,7 @@ BI.Farbtastic = BI.inherit(BI.BasicButton, {
 
     render: function () {
         var self = this;
+        this._defaultState();
         return {
             type: "bi.absolute",
             items: [{
@@ -87,6 +88,10 @@ BI.Farbtastic = BI.inherit(BI.BasicButton, {
         }
     },
 
+    _defaultState: function () {
+        this.hsl = [0, 0, 0];
+    },
+
     _unpack: function (color) {
         if (color.length === 7) {
             return [parseInt("0x" + color.substring(1, 3)) / 255,