From 24118ec19b6f975fcbabc3a67bf1dc4002be3249 Mon Sep 17 00:00:00 2001
From: Mark Tolmacs <mark@lazycat.hu>
Date: Wed, 19 Feb 2025 20:26:31 +0100
Subject: [PATCH] Fix single point arrow binding focus point

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>
---
 packages/excalidraw/element/binding.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/packages/excalidraw/element/binding.ts b/packages/excalidraw/element/binding.ts
index 392fbaf4a2..601d1217e7 100644
--- a/packages/excalidraw/element/binding.ts
+++ b/packages/excalidraw/element/binding.ts
@@ -69,6 +69,7 @@ import {
   vectorScale,
   vectorNormalize,
   vectorCross,
+  pointsEqual,
 } from "../../math";
 import { intersectElementWithLineSegment } from "./collision";
 import { distanceToBindableElement } from "./distance";
@@ -1523,6 +1524,11 @@ const determineFocusDistance = (
     element.x + element.width / 2,
     element.y + element.height / 2,
   );
+
+  if (pointsEqual(a, b)) {
+    return 0;
+  }
+
   const intersection = [
     linesIntersectAt(
       line(a, b),