message: removed assertion, that assumption should not be made
diff: @@ -49,7 +49,6 @@ public:
  for (idx_t i = 0; i < group_size; i++) {
  flags[1 + i] = flag_buffer.Extract();
  }
  - D_ASSERT(group_size != 0);
  max_flags_to_read = group_size;
  index = 0;
  }
  