What's going on in src/SamSegmentMapper.cpp:226

In `src/SamSegmentMapper.cpp:226` it says

```c++
            if (!chrConverter.isTechnical(alignment.getMateChrIndex()) &&
                !(alignment.getMateChrIndex() == 2 &&
                  (alignment.getMatePos() / 10000 == 3314))) {
```

This seems like special code for hg37 ... 🤔 
