Sanitize MR title for

lib/gitlab/danger/helper.rb

@@ -6,6 +6,7 @@ module Gitlab
   module Danger
     module Helper
       RELEASE_TOOLS_BOT = 'gitlab-release-tools-bot'
+      DRAFT_REGEX = /\A*#{Regexp.union(/(?i)(\[WIP\]\s*|WIP:\s*|WIP$)/, /(?i)(\[draft\]|\(draft\)|draft:|draft\s\-\s|draft$)/)}+\s*/i.freeze
 
       # Returns a list of all files that have been added, modified or renamed.
       # `git.modified_files` might contain paths that already have been renamed,
@@ -210,7 +211,7 @@ module Gitlab
       end
 
       def sanitize_mr_title(title)
-        title.gsub(/^WIP: */, '').gsub(/`/, '\\\`')
+        title.gsub(DRAFT_REGEX, '').gsub(/`/, '\\\`')
       end
 
       def security_mr?

spec/lib/gitlab/danger/helper_spec.rb

@@ -363,6 +363,11 @@ RSpec.describe Gitlab::Danger::Helper do
     where(:mr_title, :expected_mr_title) do
       'My MR title'      | 'My MR title'
       'WIP: My MR title' | 'My MR title'
+      'Draft: My MR title' | 'My MR title'
+      '(Draft) My MR title' | 'My MR title'
+      '[Draft] My MR title' | 'My MR title'
+      '[DRAFT] My MR title' | 'My MR title'
+      'DRAFT: My MR title' | 'My MR title'
     end
 
     with_them do