Creating a contact in a group does not work

[MariusBluem]

Steps to reproduce

1. Select a group
2. Create a new contact inside of this selected group
3. The name of the group is not shown as one word, it was splitted into the single letters - some letters are missing 🙄

Server configuration

Operating system:
Ubuntu 16.04
Web server:
Apache
Database:
SQLite 3.11.0
PHP version:
7.1.4
Nextcloud version: (see Nextcloud admin page)
12.0 beta1
Contacts version: (see Nextcloud apps page)
1.5.3

Client configuration

Browser:
Safari 10.1.1
Operating system:
macOS Sierra 10.12.5 beta

[irgendwie]

duplicate and already fixed by #191