From cd9a4fc049328aedd5944611badbf6fbef5c632d 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 7986d5eaa..ce15809f2 100644
--- a/lib/GuestManager.php
+++ b/lib/GuestManager.php
@@ -83,6 +83,8 @@ public function createGuest(?IUser $createdBy, string $userId, string $email, st
 
 		if ($displayName !== '') {
 			$user->setDisplayName($displayName);
+		} else {
+			$user->setDisplayName($email);
 		}
 
 		if ($language !== '') {