fix issue with double frees when assigning an array

include/data.h

@@ -125,6 +125,13 @@ class Data
      *  @return Modifier*   nullptr in case it isn't found
      */
     Modifier *modifier(const char *name, size_t size) const;
+
+    /**
+     *  contains a specific value
+     *  @param const Value*     a pointer to the value
+     *  @return boolean
+     */
+    bool contains(const Value *value) const;
 };
 
 /**

src/data.cpp

@@ -251,6 +251,25 @@ Modifier *Data::modifier(const char* name, size_t size) const
     return iter->second;
 }
 
+/**
+ *  contains a specific value
+ *  @param const Value*     a pointer to the value
+ *  @return boolean
+ */
+bool Data::contains(const Value *value) const
+{
+    // iterate over all values
+    for (const auto &variable :_variables)
+    {
+        // if pointers are identical it is in the data object
+        if (variable.second == value) return true;
+    }
+
+    // the value was not found
+    return false;
+}
+
+
 /**
  *  End namespace
  */

src/handler.h

@@ -270,6 +270,9 @@ class Handler
             if (v.get() == value) return false;
         }
 
+        // if it is already hold by the data object we also do not have to manage it
+        if (_data->contains(value)) return false;
+
         // If they are not we start managing it
         _managed_local_values.emplace_back(value);