<!--
  - 🚨 SECURITY INFO
  -
  - Before sending a pull request that fixes a security issue please report it via our HackerOne page (https://hackerone.com/nextcloud) following our security policy (https://nextcloud.com/security/). This allows us to coordinate the fix and release without potentially exposing all Nextcloud servers and users in the meantime.
-->

* Resolves: # <!-- related github issue -->
* [Sign-off message](https://github.com/src-d/guide/blob/master/developer-community/fix-DCO.md) is added to all commits