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Unite fails for path with self-overlapping line, and disappears on subtract #2036

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bitbof opened this issue Jun 3, 2023 · 0 comments

bitbof commented Jun 3, 2023

Description/Steps to reproduce

Take a path where the line perfectly overlaps with itself in one spot. (parallel to x/y axis or diagonal, does not matter)

When it is united with anything (e.g. empty path), the path will not be properly simplified.
When a path is subtracted from it, it will completely disappear.

Link to reproduction test-case

http://sketch.paperjs.org/#V/0.12.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

Expected result

Path is properly simplified on unite.
Path does not completely disappear on subtract.

Additional information

Does not seem like a regression. Also fails with v0.12.3.

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