Zabbix

..F.I..... [ZBX-12899] fixed check for circular dependencies in navigation tree items
fixed naming of navigation tree fields in the "widget_field" table:

 - map.order.N => navtree.order.N
 - map.parent.N => navtree.parent.N
 - mapid.N => navtree.sysmapid.N
 - map.name.N => navtree.name.N

* commit '571e6ef63df50b56e240e1195d37f7d8e2c2223f':
  .D........ [ZBX-12899] fixed components in the ChangeLog entry
  .D........ [ZBX-12899] added author for ChangeLog entry
  .D........ [ZBX-12899] added ChangeLog entry
  ..F....... [ZBX-12899] fixed JS errors in other way
  ..F....... [ZBX-12899] fixed expanding of new nested nav tree items
  ..F....... [ZBX-12899] fixed opening of the parent nav tree element when adding a new one without submaps
  ..F....... [ZBX-12899] fixed disappearance of navigation tree items after the dashboard save
  ..F....... [ZBX-12899] fixed uncaught typeerror in navtree; fixed useless call of code responsible for processing map hierarchy data
  ..F....... [ZBX-12899] fixed validation of the tree with muptiple circular dependencies, for example 1 -> 3, 2 -> 3, 3 -> 2
  ..F....... [ZBX-12899] fixed displaying of error messages for currupted widget configuration data
  ..F....... [ZBX-12899] some minor coding style fixes
  ..F....... [ZBX-12899] fixed depth validation in navigation tree item update controller
  ..F....... [ZBX-12899] implemented a new data type CWidgetFieldNavTree; moved all related logic to this data type
  ..F....... [ZBX-12899] fixed formatting issue
  ..F....... [ZBX-12899] added support of API_PRESERVE_KEYS flag for API_OBJECTS data type; updated unit tests
  ....I..... [ZBX-12899] added database upgrade patch to convert Navigation tree fields: