prevent degenerate ways caused by deleting a corner of a triangle #10003
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There's one test failing: iD/test/spec/actions/circularize.js Line 281 in 4073609 It's a bit of a weird test, because if you try to use the circularlise operation on a way that loops back on itself ( |
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Closes #9329
@tyrasd had some alternative ideas in #9329 (comment), this PR implements option 1: you can no longer create a degenerate way by deleting the third-last node.