From 75f3dd3f049d4fed1c47aa76650194bd7a3d7299 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Veronika=20Feh=C3=A9rv=C3=ADziov=C3=A1?=
 <128744051+VeronikaFeherviziova@users.noreply.github.com>
Date: Fri, 31 Oct 2025 23:05:19 +0100
Subject: [PATCH] fix: incorrect user ID being used with overlap checking

---
 backend/app/Http/Controllers/InternshipController.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/app/Http/Controllers/InternshipController.php b/backend/app/Http/Controllers/InternshipController.php
index 6d1ddde..418cdb3 100644
--- a/backend/app/Http/Controllers/InternshipController.php
+++ b/backend/app/Http/Controllers/InternshipController.php
@@ -183,7 +183,7 @@ class InternshipController extends Controller
         }
 
         $this->validateNewInternship($request);
-        $this->checkOverlap($user->id, $request->start, $request->end, $internship->id);
+        $this->checkOverlap($internship->user_id, $request->start, $request->end, $internship->id);
 
         $internship->update($request->except(['user_id']));
         return response()->noContent();