I have been working with the Content Moderation module in Drupal 8 and one slight niggle we came across was the default option for the Moderation state.
If the current state was In Review we would like the Change to option to also be In Review rather than Draft.
This means the default is to keep the entity in it’s current state rather than switching to a new state. Switching to a new state is then an active task for the editor.
I did this by implementing hook_form_alter() in a custom module.
In this function we first check if the form contains the moderation_state key.
Next we load the node so we can access it’s properties.
The moderation state is then retrieved from the node.
The last part is to check if the moderation state has a value. If we are creating a node this will not be set.
In the if statement we then set the default value to the current state.