Zabbix

..F....PS. [ZBXNEXT-5176,ZBXNEXT-5205] blocked zero item history/trends period being overridden by global configuration

* commit '87cf068904dde1f5b267e9258ef2efd3d0a9c1ba': (23 commits)
  .D........ [ZBXNEXT-5176,ZBXNEXT-5205] updated changelog
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] fixed previous value detection when changing type of information in item and item prototype edit forms
  ..F....... [ZBXNEXT-5205,ZBXNEXT-5176] fixed strange behaviour of trends storage period when switching between item types of information
  ..F....... [ZBXNEXT-5205] fixed appearance of trends storage period field when type of information is changed
  .......... [ZBXNEXT-5205,ZBXNEXT-5176] fixed autotest, changed history and trend mode in item form
  ..F....... [ZBXNEXT-5205,ZBXNEXT-5176] fixed button label in item prototype edit form
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] fixed appearance of trends storage period field when change the type of value in item prototype edit form
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] fixed history and trend mode value in mass update screen when form is refreshed
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] fixed coding style
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] made changes to item prototype massupdate form
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] moved changes made in version 4.0 to 4.2
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] fixed history and trends update value comparison
  ..F....... [ZBXNEXT-5176,ZBXNEXT-5205] minor coding style fix
  ........S. [ZBXNEXT-5176] do not scan all items if housekeeping for history and trends is disabled or timescale is used
  ........S. [ZBXNEXT-5176] removed unused function
  ........S. [ZBXNEXT-5176] make sure history is stored for max possible time if configured incorrectly
  ........S. [ZBXNEXT-5176] fixed handling of invalid storage period
  ........S. [ZBXNEXT-5176] fixed handling of invalid storage period
  ........S. [ZBXNEXT-5176] updated housekeeper to not override zero history/trends period with global settings.  Had to revert housekeeper optimizations for global settings, as now they depend on item history/trends settings.
  .......PS. [ZBXNEXT-5176] updated configuration syncer to not override 0 history/trends value with global settings
  ...

(cherry picked from commit c9fc882527cfbddd2b22fdae6ebc6ced8dd2428a)