fix: update last share update time when changing user status

Signed-off-by: Robin Appelman <robin@icewind.nl>

Author: icewind1991

lib/private/Sharing/SharingManager.php

@@ -231,7 +231,10 @@ public function updateShareUserStatus(ShareAccessContext $accessContext, Share $
 			throw new ShareInvalidException('Cannot set user status for the owner of the share.', $this->l10n->t('Cannot set user status for the owner of the share.'));
 		}
 
-		// We don't update the share last updated value, because the user status is not part of the share itself.
+		// We update the share last updated value, even though the user status is not part of the share itself,
+		// so we can use the last updated value to coordinate syncing between unified and legacy shares.
+		$time = $this->getTime();
+		$this->backend->setLastUpdated([$share->id], $time);
 
 		$this->backend->updateShareUserStatus($share->id, $currentUser->getUID(), $userStatus);