Steps to reproduce:

1. Disable a trigger of an open problem
2. Problem disappear in Zabbix problem dashboard
3. Get all open problems with problem.get api call
4. Problem with disabled trigger still appears in list of open problems
5. And there is no option in problem.get to filter out the problems with disabled triggers 

Result:
problem.get returns problems that has disabled triggers and no option to filter them out
Expected:
problem.get doesn't give problems that has disabled triggers or has an option to filter them out.