1 files changed, 14 insertions, 0 deletions
diff --git a/app/services/issuable_base_service.rb b/app/services/issuable_base_service.rb
index a63c54df4a6..03115416607 100644
--- a/app/services/issuable_base_service.rb
+++ b/app/services/issuable_base_service.rb
@@ -525,6 +525,10 @@ class IssuableBaseService < ::BaseProjectService
     attrs_changed || labels_changed || assignees_changed || reviewers_changed
   end
 
+  def has_label_changes?(issuable, old_labels)
+    Set.new(issuable.labels) != Set.new(old_labels)
+  end
+
   def invalidate_cache_counts(issuable, users: [])
     users.each do |user|
       user.public_send("invalidate_#{issuable.noteable_target_type_name}_cache_counts") # rubocop:disable GitlabSecurity/PublicSend
@@ -532,6 +536,16 @@ class IssuableBaseService < ::BaseProjectService
   end
 
   # override if needed
+  def handle_label_changes(issuable, old_labels)
+    return unless has_label_changes?(issuable, old_labels)
+
+    # reset to preserve the label sort order (title ASC)
+    issuable.labels.reset
+
+    GraphqlTriggers.issuable_labels_updated(issuable)
+  end
+
+  # override if needed
   def handle_changes(issuable, options)
   end