fix unexpected flatten error
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1 changed files with 2 additions and 1 deletions
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@ -323,7 +323,8 @@ function setContains(setA, poly) {
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return false;
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}
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function flatten(polys, to = [], crush) {
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function flatten(polys, to, crush) {
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to = to || [];
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for (let poly of polys) {
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poly.flattenTo(to);
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if (crush) poly.inner = null;
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