Preserve Changed Timestamp UI

Provides a checkbox in entities node (yet - see #3313389: Don't limit the functionality to nodes) edit forms to preserve the last changed date for the current change.
Typically used for minor changes like typo fixes, if you don't want such a change to be reflected by a changed updated date.

If you need an API module instead of the UI, see https://www.drupal.org/project/preserve_changed

Installation

• Require the module via composer using `composer require preserve_changed_ui`
• Install the module using drush `drush en preserve_changed_ui` or via the UI

Usage

Go to /admin/config/system/preserve-changed-ui and define the default
behaviour of the module. After that, make sure the field is enabled on the
node bundle you want to use it on.

Now when you edit a node, there is a checkbox on the bottom of the form, to set
whether you want to preserve the "Last saved" timestamp on the current
node.

Dependencies

• No dependencies

This module is NOT dependent on https://www.drupal.org/project/preserve_changed as that module will become outdated, once #2329253: Allow ChangedItem to skip updating the entity's "changed" timestamp when synchronizing is fixed. Furthermore, we originally implemented the logic differently, so once the before mentioned issue is fixed, we will alter this module to work with the "sync" parameter instead.

Development proudly sponsored by German Drupal Friends & Companies:

webks: websolutions kept simple (https://www.webks.de)
and
DROWL: Drupalbasierte Lösungen aus Ostwestfalen-Lippe (OWL), Germany (https://www.drowl.de)