Redmine

Problem Behavior

Two scenarios cause custom field values to disappear without journal entries:

1. Decoupling + Bulk Edit: Custom field is removed from a project, then a bulk edit is performed on its issues.
2. Decoupling in both + Move: Custom field is removed from both source and target projects, then an issue is moved between them.

Proposed Fix

1. Location: save_custom_field_values method in lib/plugins/acts_as_customizable/lib/acts_as_customizable.rb
2. Approach: Before deleting CustomValue records via dependent: :delete_all, detect which values be removed and create journal entries documenting the deletion. Then proceed the deletion.

This behavior is expected in all version of Redmine.