Don't use original_discussion_id

.../javascripts/diff_notes/components/comment_resolve_btn.js

app/assets/javascripts/files_comment_button.js

app/assets/javascripts/notes.js

app/controllers/projects/notes_controller.rb

app/helpers/notes_helper.rb

app/models/concerns/noteable.rb

app/models/diff_discussion.rb

app/models/diff_note.rb

app/models/discussion.rb

app/models/individual_note_discussion.rb

app/models/legacy_diff_discussion.rb

app/models/note.rb

app/models/out_of_context_discussion.rb

app/models/sent_notification.rb

app/models/simple_discussion.rb

app/services/notes/build_service.rb

app/views/discussions/_discussion.html.haml

app/views/discussions/_notes.html.haml

lib/gitlab/diff/position.rb

spec/lib/gitlab/import_export/safe_model_attributes.yml