From 6e446a23ad2c15cfcd85acc6df3d4ff15de11ce0 Mon Sep 17 00:00:00 2001
From: Hanno Braun <hanno@braun-odw.eu>
Date: Wed, 12 Oct 2022 15:01:12 +0200
Subject: [PATCH] Compare `SurfaceVertex` instances based on ID

---
 crates/fj-kernel/src/algorithms/sweep/edge.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crates/fj-kernel/src/algorithms/sweep/edge.rs b/crates/fj-kernel/src/algorithms/sweep/edge.rs
index 5bbd90650..17f3d7de0 100644
--- a/crates/fj-kernel/src/algorithms/sweep/edge.rs
+++ b/crates/fj-kernel/src/algorithms/sweep/edge.rs
@@ -169,7 +169,9 @@ impl Sweep for (HalfEdge, Color) {
                 // Need to compare surface forms here, as the global forms might
                 // be coincident when sweeping circles, despite the vertices
                 // being different!
-                if prev_last.surface_form() != next_first.surface_form() {
+                if prev_last.surface_form().id()
+                    != next_first.surface_form().id()
+                {
                     edges[j] = edges[j].clone().reverse();
                 }