message: Fix Column-major extraction code
diff: @@ -1049,7 +1049,7 @@ void ExtractSelectionFromPartialCM(int ElementSize, size_t Dims,
  int Left = MAX(PartialOffsets[Dim], SelectionOffsets[Dim]);
  int Right = MIN(PartialOffsets[Dim] + PartialCounts[Dim],
  SelectionOffsets[Dim] + SelectionCounts[Dim]);
  - if (Dim < Dims - 1)
  + if (Dim > 0)
  {
  BlockCount *= (Right - Left);
  }
  