Return last edited time instead of update time41247-timestamp

For issuable models we keep two timestamps:
updated_at which is updated whenever any model attribute is changed,
last_edited_at which is changed when only title or description is
changed.

In UI bellow description we display who and when updated the item. But
last_edited_by (used for 'who') is mistakenly combined with updated_at
(when), last_edited_at should be used instead.

Closes #41247

2 files changed, 2 insertions, 2 deletions

diff --git a/app/controllers/concerns/issuable_actions.rb b/app/controllers/concerns/issuable_actions.rb
index 74a4f437dc8..337957c366d 100644
--- a/app/controllers/concerns/issuable_actions.rb
+++ b/app/controllers/concerns/issuable_actions.rb
@@ -45,7 +45,7 @@ module IssuableActions
     }
 
     if issuable.edited?
-      response[:updated_at] = issuable.updated_at
+      response[:updated_at] = issuable.last_edited_at.to_time.iso8601
       response[:updated_by_name] = issuable.last_edited_by.name
       response[:updated_by_path] = user_path(issuable.last_edited_by)
     end
diff --git a/app/helpers/issuables_helper.rb b/app/helpers/issuables_helper.rb
index 2668cf78afe..16f39ac96bd 100644
--- a/app/helpers/issuables_helper.rb
+++ b/app/helpers/issuables_helper.rb
@@ -241,7 +241,7 @@ module IssuablesHelper
     return {} unless issuable.edited?
 
     {
-      updatedAt: issuable.updated_at.to_time.iso8601,
+      updatedAt: issuable.last_edited_at.to_time.iso8601,
       updatedBy: {
         name: issuable.last_edited_by.name,
         path: user_path(issuable.last_edited_by)