There are several places in Zabbix where z-selector works incorrectly.

Steps to reproduce/Scenarios:
1) Create media type with name -  

Real name here" 

Navigate to Reports->Notification.
Can't see media type. Console error.

2) Create media type with name -  

Real name here" 

Create User and navigate to Media tab. Press Add.

3) Create icon with name - 

Real name here" 

Navigate to Administration->General->Icon mapping.
Try to create new icon mapping.

4) (Master only) In authentication add new LDAP server with name - 

Real name here" 

Open any User group.
Console error and LDAP server dropdown doesn't work.

5) Create Top Hosts widget. Add column with type Item and name - 

Real name here" 

Order column field doesn't work.