- Use hashless keys in code
- Display hashless keys in debug panel
- Convert cche keys into hash in GLPI cache decorator (prevent issues with too long cache key)

Added a reset of the alternative_email fields when assign a watcher (or a technician or a requester)
fixes #3468

* No impact analysis on helpdesk; fixes #6956

* Security check before displaying impact analysis

This reverts commit c19c367a.

* Add forcename option to API

* Add deprecated in changelog

* Remove const

* Do not add add hateoas for names

* Change forcename to add_keys_names

* Update doc and changelog

* manage multiple values in user dropdown

* fix warning when comparing updated values

* manage tooltips on multiple user dropdown