fix cubetree init crash.

App/wwwroot/HiAPI-docsite/api/Hi.Geom.FractionStatus.html

@@ -6,7 +6,7 @@
       <meta name="viewport" content="width=device-width, initial-scale=1.0">
       <meta name="title" content="Enum FractionStatus | HiAPI-C# 2025 ">
       
-      <meta name="description" content="Status flags for .">
+      <meta name="description" content="Status flags for Fraction and . Corresponds to IS_PACKED_MASK and IS_EVALUATED_MASK in C++ fraction_base_t.">
       <link rel="icon" href="../img/HiAPI.favicon.ico">
       <link rel="stylesheet" href="../public/docfx.min.css">
       <link rel="stylesheet" href="../public/main.css">
@@ -98,7 +98,8 @@ Enum FractionStatus
   <dl><dt>Assembly</dt><dd>HiDisp.dll</dd></dl>
   </div>
 
-  <div class="markdown summary"><p>Status flags for <a class="xref" href="Hi.Geom.NativeFraction.html">NativeFraction</a>.</p>
+  <div class="markdown summary"><p>Status flags for Fraction and <a class="xref" href="Hi.Geom.NativeFraction.html">NativeFraction</a>.
+Corresponds to IS_PACKED_MASK and IS_EVALUATED_MASK in C++ fraction_base_t.</p>
 </div>
   <div class="markdown conceptual"></div>
 
@@ -154,9 +155,6 @@ public enum FractionStatus : short</code></pre>
   
   <dd><p>The fraction has been packed (reduced to irreducible form).</p>
 </dd>
-    <dt id="Hi_Geom_FractionStatus_IsPackedEvaluated"><code>IsPackedEvaluated = IsPacked | IsEvaluated</code></dt>
-  
-  <dd></dd>
     <dt id="Hi_Geom_FractionStatus_None"><code>None = 0</code></dt>
   
   <dd><p>No flags set. The fraction is neither packed nor evaluated.</p>