Fix show_reblogs not being preserved for moved account's followers

Author: ClearlyClaire

app/workers/unfollow_follow_worker.rb

@@ -10,7 +10,10 @@ def perform(follower_account_id, old_target_account_id, new_target_account_id, b
     old_target_account = Account.find(old_target_account_id)
     new_target_account = Account.find(new_target_account_id)
 
-    FollowService.new.call(follower_account, new_target_account, bypass_locked: bypass_locked)
+    follow = follower_account.active_relationships.find_by(target_account: old_target_account)
+    reblogs = follow&.show_reblogs?
+
+    FollowService.new.call(follower_account, new_target_account, reblogs: reblogs, bypass_locked: bypass_locked)
     UnfollowService.new.call(follower_account, old_target_account, skip_unmerge: true)
   rescue ActiveRecord::RecordNotFound, Mastodon::NotPermittedError
     true

spec/workers/unfollow_follow_worker_spec.rb

@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe UnfollowFollowWorker do
+  let(:local_follower)   { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+  let(:source_account)   { Fabricate(:account) }
+  let(:target_account)   { Fabricate(:account) }
+  let(:show_reblogs)     { true }
+
+  subject { described_class.new }
+
+  before do
+    local_follower.follow!(source_account, reblogs: show_reblogs)
+  end
+
+  context 'when show_reblogs is true' do
+    let(:show_reblogs) { true }
+
+    describe 'perform' do
+      it 'unfollows source account and follows target account' do
+        subject.perform(local_follower.id, source_account.id, target_account.id)
+        expect(local_follower.following?(source_account)).to be false
+        expect(local_follower.following?(target_account)).to be true
+      end
+
+      it 'preserves show_reblogs' do
+        subject.perform(local_follower.id, source_account.id, target_account.id)
+        expect(Follow.find_by(account: local_follower, target_account: target_account).show_reblogs?).to be show_reblogs
+      end
+    end
+  end
+
+  context 'when show_reblogs is false' do
+    let(:show_reblogs) { false }
+
+    describe 'perform' do
+      it 'unfollows source account and follows target account' do
+        subject.perform(local_follower.id, source_account.id, target_account.id)
+        expect(local_follower.following?(source_account)).to be false
+        expect(local_follower.following?(target_account)).to be true
+      end
+
+      it 'preserves show_reblogs' do
+        subject.perform(local_follower.id, source_account.id, target_account.id)
+        expect(Follow.find_by(account: local_follower, target_account: target_account).show_reblogs?).to be show_reblogs
+      end
+    end
+  end
+end