Exported YOLO Labels are Corrupt

When labeling images for segmentation in Label Studio, I have noticed a few instances where the exported YOLO labels are corrupted (they go below 0 or above 1).

Here's a few examples:

```
1 0.009318555008210182 0.004597701149425287 1.0001915708812261 0.014942528735632184 1.0 1.0 0.0 1.0 0.0015530925013683636 0.059770114942528735
```

```
1 0.0 0.0 0.5029174401232304 -0.0011254847734823994 0.504529304059381 1.0 0.003234159651848588 1.0
0 0.5061439936592977 0.002298850655350974 0.9985467925082516 0.0011494252873563218 0.9985467925082516 0.9965517241379309 0.5093778877304787 0.9977011492640108
```

This issue looks to be related to https://github.com/HumanSignal/label-studio/issues/5014

This happens mostly when labeling points on the boundary of the image.