fixed traincascade

modules/traincascade/boost.cpp

@@ -457,10 +457,18 @@ const int* CvCascadeBoostTrainData::get_cat_var_data( CvDTreeNode* n, int vi, in
             catValuesBuf[i] = (int) valCache.at<float>( vi, sampleIndices[i]);
     }
     else
+    {
+        if( vi >= numPrecalcVal && vi < var_count )
         {
             for( int i = 0; i < nodeSampleCount; i++ )
                 catValuesBuf[i] = (int)(*featureEvaluator)( vi, sampleIndices[i] );
         }
+        else
+        {
+            get_cv_labels( n, catValuesBuf );
+        }
+    }
+
     return catValuesBuf;
 }