From e350d10578290f7bbc8dedae18811dad837029c0 Mon Sep 17 00:00:00 2001
From: Dustin Carlino <dabreegster@gmail.com>
Date: Tue, 14 May 2019 10:42:42 -0700
Subject: [PATCH] fix crash in to_thick_boundary triggered in the 23rd map

---
 geom/src/polyline.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/geom/src/polyline.rs b/geom/src/polyline.rs
index e4bc2b3a4a..5854ac9022 100644
--- a/geom/src/polyline.rs
+++ b/geom/src/polyline.rs
@@ -65,7 +65,7 @@ impl PolyLine {
         boundary_width: Distance,
     ) -> Option<Polygon> {
         assert!(self_width > boundary_width);
-        if self.length() <= boundary_width {
+        if self.length() <= boundary_width + EPSILON_DIST {
             return None;
         }
         let slice = self.exact_slice(boundary_width / 2.0, self.length() - boundary_width / 2.0);