fix(cache): Remove displayname cache entry on delete

Signed-off-by: Joas Schilling <coding@schilljs.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/private/User/DisplayNameCache.php b/lib/private/User/DisplayNameCache.php
index 5d1cc8940d7..6ee74cc9f6c 100644
--- a/lib/private/User/DisplayNameCache.php
+++ b/lib/private/User/DisplayNameCache.php
@@ -29,6 +29,7 @@ use OCP\ICache;
 use OCP\ICacheFactory;
 use OCP\IUserManager;
 use OCP\User\Events\UserChangedEvent;
+use OCP\User\Events\UserDeletedEvent;
 
 /**
  * Class that cache the relation UserId -> Display name
@@ -81,5 +82,10 @@ class DisplayNameCache implements IEventListener {
 			$this->cache[$userId] = $newDisplayName;
 			$this->memCache->set($userId, $newDisplayName, 60 * 10); // 10 minutes
 		}
+		if ($event instanceof UserDeletedEvent) {
+			$userId = $event->getUser()->getUID();
+			unset($this->cache[$userId]);
+			$this->memCache->remove($userId);
+		}
 	}
 }