Elephant foot compensation corrupts circles

[haarp]

PS 2.1.0 final on Linux

Enablig elephant foot compensation tends to corrupt arcs and circles.

Repro:

1. Take any random part
2. Add cylinder modifier mesh
3. Add settings: No perimeters, no infill, no top/bottom layers
4. Slice -> a clean hole through the part
5. Set elephant foot compensation to 0.2mm
6. Slice -> First layer of hole is corrupted as seen in the screenshot

Thanks!

[Kachidoki2807]

Maybe it is related to #2998

[bubnikv]

@haarp Please provide a 3mf so we can retest a fix. Thank you.

[haarp]

@bubnikv It shouldn't matter as it happens with all parts, but here you go:
avvain_rev2.3mf.zip

[bubnikv]

The elephant foot compensation improvements are part of PrusaSlicer 2.2.0-alpha2. Closing.