From 060ab5e7f91bb9c5d11530ccc193aab162ccb046 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Mon, 28 Dec 2015 19:22:29 +0100
Subject: [PATCH] Only mark overlap segments as visited during #intersect().

---
 src/path/PathItem.Boolean.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/path/PathItem.Boolean.js b/src/path/PathItem.Boolean.js
index 84a1b58c..31e503a7 100644
--- a/src/path/PathItem.Boolean.js
+++ b/src/path/PathItem.Boolean.js
@@ -623,7 +623,9 @@ PathItem.inject(new function() {
                 // If we are at a crossing and the other segment is part of the
                 // boolean result, switch to it.
                 if (other && isValid(other)) {
-                    if (operation === 'intersect')
+                    // We need to mark overlap segments as visited when
+                    // processing intersection.
+                    if (inter.isOverlap() && operation === 'intersect')
                         seg._visited = true;
                     seg = other;
                 }