Propatch to birthday calendar returns 404 #5077

Steps to reproduce

1. Activate or deactivate (show/hide) the birthday contacts
2. Check the console logs

Expected behaviour

Http code returned should be something like 200.

Actual behaviour

Http code is 404, returning the following error message :

<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
<s:exception>Sabre\DAV\Exception\NotFound</s:exception>
<s:message>Node with name 'contact_birthdays' could not be found</s:message>
</d:error>

The calendar of birthday contacts is correctly hidden/shown.

Server configuration

Operating system: Debian Jessie

Web server: nginx

Database: Mysql

PHP version: 7.0

Nextcloud version: (see Nextcloud admin page) 11.0.3

Updated from an older Nextcloud/ownCloud or fresh install: 11

Client configuration

Browser: Chrome / Firefox

Operating system: GNU/Linux

Logs

Web server error log

Nothing relevant.

Nextcloud log (data/nextcloud.log)

Nothing relevant (loglevel 2)

Browser log

See above.