Zabbix

A......... [ZBX-18432] fixed inability to view a part of problems and events by users with specific permissions on tags when permissions on all tags is given to specific host group

* commit '66d5c38695a8f3d1a8d5533175aa0f478263a76d':
  .......... [ZBX-18432] added a more detailed changelog entry
  A......... [ZBX-18432] fixed display of problem history for users with tag filters with empty name and value
  A......... [ZBX-18432] fixed display of problem history for users with tag filters with empty name and value
  A......... [ZBX-18432] fixed display of problems for users with tag filters with empty name and value