DecisionAlways hide non-translatable fields on translation forms
accepted
When content translation is enabled, it's possible to decide which fields can be translated.
Table Of Contents
By default, Drupal displays both translatable and non-translatable field on translation forms. This often leads to editors changing values of a non-translatable field when translating content and inadvertently affecting all other translations as well.
Decision
When configuring field translatability in Drupal, all non-translatable fields should be hidden from the translation forms.
How to do it
Navigate to Configuration -> Regional and Language -> Content language and translation and make sure to check the corresponding checkbox on each translatable bundle:

Consequences
Projects will reduce changes of editorial confusion when translating content in Drupal.