message: Fix a bug in flatbuffer importer that use tensor quantization before checking.
diff: @@ -509,7 +509,7 @@ Operation* BuildVariableOp(const tflite::TensorT& tensor,
  return op.getOperation();
  }
  auto op = builder.create<tfl::ConstOp>(loc, value);
  - if (!tensor.quantization->min.empty()) {
  + if (tensor.quantization && !tensor.quantization->min.empty()) {
  if (auto stats_op =
  ConvertMinMaxToStatsOp(tensor, builder, op.getResult())) {
  return stats_op;
  