Can't link templates, after linking template with dependent item.
Steps to reproduce:
1) Create empty template (main).
2) Create one more template (that will be linked to main template).
3) In second template create Web service.
4) In second template create item with type Dependent and with master item - one of web service items.
5) Try to link template with item to main template.

Result:
Can't link, Zabbix crashed. A lot of runtiem errors.

Expected:
No problems, template linked.