From 5dacd51c144f6262b9db583b096f5ec82c793081 Mon Sep 17 00:00:00 2001
From: Morris Jobke <hey@morrisjobke.de>
Date: Fri, 30 Sep 2016 14:57:54 +0200
Subject: [PATCH] Use proper casing of username in avatar filesystem setup

* before you could request an avatar for User instead of user
  which sets up the filesystem for that user twice causing
  the sharing codes collision detection to detect a lot of
  collisions

Signed-off-by: Morris Jobke <hey@morrisjobke.de>
---
 lib/private/AvatarManager.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/private/AvatarManager.php b/lib/private/AvatarManager.php
index 0eabc3a175..6f1f380a90 100644
--- a/lib/private/AvatarManager.php
+++ b/lib/private/AvatarManager.php
@@ -91,6 +91,8 @@ class AvatarManager implements IAvatarManager {
 		if (is_null($user)) {
 			throw new \Exception('user does not exist');
 		}
+		// sanitize userID - fixes casing issue (needed for the filesystem stuff that is done below)
+		$userId = $user->getUID();
 
 		/*
 		 * Fix for #22119