message: python: disable assertion in NumpyAllocator
diff: @@ -149,7 +149,7 @@ public:
  {
  if( data != 0 )
  {
  - CV_Error(Error::StsAssert, "The data should normally be NULL!");
  + // issue #6969: CV_Error(Error::StsAssert, "The data should normally be NULL!");
  // probably this is safe to do in such extreme case
  return stdAllocator->allocate(dims0, sizes, type, data, step, flags, usageFlags);
  }
  