Allow award emoji to have same name and user_id when Importing

app/models/award_emoji.rb

@@ -15,7 +15,7 @@ class AwardEmoji < ApplicationRecord
   validates :awardable, presence: true, unless: :importing?
 
   validates :name, presence: true, inclusion: { in: Gitlab::Emoji.emojis_names }
-  validates :name, uniqueness: { scope: [:user, :awardable_type, :awardable_id] }, unless: :ghost_user?
+  validates :name, uniqueness: { scope: [:user, :awardable_type, :awardable_id] }, unless: -> { ghost_user? || importing? }
 
   participant :user
 

changelogs/unreleased/georgekoltsov-fix-award-emojis-import-export.yml

+---
+title: Allow award emoji same name & user duplicates when Importing
+merge_request: 28588
+author:
+type: fixed

spec/models/award_emoji_spec.rb

@@ -41,6 +41,22 @@ describe AwardEmoji do
 
         expect(new_award).to be_valid
       end
+
+      # Similar to allowing duplicate award emojis for ghost users,
+      # when Importing a project that has duplicate award emoji placed by
+      # ghost user we change the author to be importer user and allow
+      # duplicates, otherwise relation containing such duplicates
+      # fails to be created
+      context 'when importing' do
+        it 'allows duplicate award emoji' do
+          user  = create(:user)
+          issue = create(:issue)
+          create(:award_emoji, user: user, awardable: issue)
+          new_award = build(:award_emoji, user: user, awardable: issue, importing: true)
+
+          expect(new_award).to be_valid
+        end
+      end
     end
   end