Add milestone and label note types to cross refs

- Include new types in SystemNoteMetadata
- Add Label and Milestone reference_pattern to
Mentionable::ReferenceRegexes to be checked for cross references

2 files changed, 4 insertions, 1 deletions

diff --git a/app/models/concerns/mentionable/reference_regexes.rb b/app/models/concerns/mentionable/reference_regexes.rb
index fec31cd262b..f44a674b3c9 100644
--- a/app/models/concerns/mentionable/reference_regexes.rb
+++ b/app/models/concerns/mentionable/reference_regexes.rb
@@ -13,7 +13,9 @@ module Mentionable
     def self.other_patterns
       [
         Commit.reference_pattern,
-        MergeRequest.reference_pattern
+        MergeRequest.reference_pattern,
+        Label.reference_pattern,
+        Milestone.reference_pattern
       ]
     end
 
diff --git a/app/models/system_note_metadata.rb b/app/models/system_note_metadata.rb
index 11cbeb60bba..5a44ee7211b 100644
--- a/app/models/system_note_metadata.rb
+++ b/app/models/system_note_metadata.rb
@@ -10,6 +10,7 @@ class SystemNoteMetadata < ApplicationRecord
     commit cross_reference
     close duplicate
     moved merge
+    label milestone
   ].freeze
 
   ICON_TYPES = %w[