Highlight addition/deletion in "Title changed" system note on issues/MRs (!4196) · Merge requests · GitLab.org / GitLab FOSS · GitLab

Do not update/delete: Banner broadcast message test data

Do not update/delete: Notification broadcast message test data

Merged username-removed-128633 requested to merge adambutler/gitlab-ce-feature/support-diff-of-issue-title-rename into master May 18, 2016

Originally opened at !3576 (closed).

Added DiffFilter to support [- deletion -] and {+ addition +} tags.
Changed SystemNoteService#change_title to create diff tags.

Fixes #14987 (closed).

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