From ab6f0b09d730b9cf7da5c52965a89844b95ee732 Mon Sep 17 00:00:00 2001
From: CC Worker <cc-worker@kevlarai.local>
Date: Sun, 7 Jun 2026 02:21:32 +0000
Subject: [PATCH] fix: remove duplicate bindingUtils causing tldraw arrow
 double-registration

Tldraw 3.6.1 Tldraw component already registers defaultBindingUtils
internally; passing them explicitly via the bindingUtils prop caused
"Binding type 'arrow' is defined more than once" runtime crash.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/pages/exam/setup/ExamTemplateSetupPage.tsx | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/pages/exam/setup/ExamTemplateSetupPage.tsx b/src/pages/exam/setup/ExamTemplateSetupPage.tsx
index 07cc21c..72127f8 100644
--- a/src/pages/exam/setup/ExamTemplateSetupPage.tsx
+++ b/src/pages/exam/setup/ExamTemplateSetupPage.tsx
@@ -6,7 +6,7 @@ import ArrowBackIcon from '@mui/icons-material/ArrowBack'
 import SaveIcon from '@mui/icons-material/Save'
 import MouseIcon from '@mui/icons-material/Mouse'
 import '@tldraw/tldraw/tldraw.css'
-import { Editor, Tldraw, createShapeId, defaultBindingUtils, TLShape } from '@tldraw/tldraw'
+import { Editor, Tldraw, createShapeId, TLShape } from '@tldraw/tldraw'
 import axios from 'axios'
 
 import { ErrorBoundary } from '../../../components/ErrorBoundary'
@@ -178,7 +178,6 @@ const ExamTemplateSetupInner: React.FC = () => {
       <Box sx={{ position: 'absolute', inset: 0, '& .tlui-layout': { display: 'none' } }} data-testid="exam-template-setup-canvas">
         <Tldraw
           shapeUtils={examCanvasShapeUtils as any}
-          bindingUtils={defaultBindingUtils}
           tools={examCanvasTools as any}
           hideUi
           inferDarkMode={theme.palette.mode === 'dark'}