Zabbix

..F....... [ZBX-25681] fixed newly added tag field state in maintenance form after changing type

* commit 'b0f87a7c1a48e2cbc897430dd1c6d39819d30428':
  ..F....... [ZBX-25681] reverted unnecessary changes
  ..F....... [ZBX-25681] simplified code
  ..F....... [ZBX-25681] fixed tag field state after changing type in maintenance configuration form