Steps to reproduce:
- Navigate to Configuration => Hosts => Triggers.
- Select some triggers and click Mass update button.
- Click the Dependencies tab.
- Click Add.
- Select any trigger.
- Observe the trigger has been added to the list.
- Click the trigger in the list (it's a link).
Navigation happens and error message is displayed: Field "context" is mandatory.
Trigger editing form is displayed (as in Zabbix 5.0).