From ed1345f93862acf80f1e61d0d539a4383b01fd33 Mon Sep 17 00:00:00 2001
From: Robin Appelman <robin@icewind.nl>
Date: Wed, 29 Apr 2026 18:30:12 +0200
Subject: [PATCH] fix: set displayname to email if no other is specified

this ensures that hashed uid guests have a sensible display name

Signed-off-by: Robin Appelman <robin@icewind.nl>
---
 lib/GuestManager.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/GuestManager.php b/lib/GuestManager.php
index c38018a19..a15c849f1 100644
--- a/lib/GuestManager.php
+++ b/lib/GuestManager.php
@@ -77,6 +77,8 @@ public function createGuest(?IUser $createdBy, string $userId, string $email, st
 
 		if ($displayName !== '') {
 			$user->setDisplayName($displayName);
+		} else {
+			$user->setDisplayName($email);
 		}
 
 		if ($language !== '') {