* fixed an error of mindmap.

src/apps/chanzhi/less/zui.less

@@ -47,6 +47,7 @@
 // --------------------------------------------------
 @import "../../../less/modules/animations.less";
 @import "../../../less/modules/modals.less";
+@import "../../../less/modules/modals.bootbox.less";
 @import "../../../less/modules/tooltip.less";
 @import "../../../less/modules/dropdowns.less";
 @import "../../../less/modules/carousel.less";

src/apps/ranzhi/less/zui.less

@@ -64,6 +64,7 @@
 // --------------------------------------------------
 @import "../../../less/modules/animations.less";
 @import "../../../less/modules/modals.less";
+@import "../../../less/modules/modals.bootbox.less";
 @import "../../../less/modules/tooltip.less";
 @import "../../../less/modules/dropdowns.less";
 @import "../../../less/modules/carousel.less";

src/js/mindmap.js

@@ -503,7 +503,7 @@
             }
             nodeData.subSide = subSide;
 
-            if(!nodeData.colorHue)
+            if(typeof nodeData.colorHue === UDF)
             {
                 nodeData.colorHue = Math.floor(((newColorIndex++) * 55) % 360);
             }
@@ -945,6 +945,10 @@
         var text = $node.find('.text').text();
         if(text != $node.data('origin-text'))
         {
+            if(text == '')
+            {
+                $node.find('.text').text('');
+            }
             $node.data('origin-text', text);
             this.update({id: $node.data('id'), text: text});