Also remove extra index

db/migrate/20190805140353_remove_rendundant_index_from_releases.rb

@@ -13,6 +13,9 @@ class RemoveRendundantIndexFromReleases < ActiveRecord::Migration[5.2]
 
   def up
     remove_concurrent_index_by_name :releases, 'index_releases_on_project_id'
+
+    # This is an extra index that is not present in db/schema.rb but known to exist on some installs
+    remove_concurrent_index_by_name :releases, 'releases_project_id_idx'
   end
 
   def down