Contacts name with special characters don't work

[npfe]

Impacted versions

• Modoboa: Latest - 1.13.0
• installer used: Yes
• Webserver: Nginx

Steps to reproduce

Create a new contact using the web interface and put this character somewhere in the name "é" , when the page with pull data from the rest API using https://<server_address>/api/v1/address-books/sync_from_cdav/ it will reply with 500 server error.

I enabled debug, browsed to sync_from_cdav and this is what I could see: pastebin

However !

It seems like radicale is doing just fine, I can sync the contact with the special character to my phone and to my other webmail.

Let me know if you need additional info !

Thanks!