diff options
Diffstat (limited to 'activerecord/lib')
| -rw-r--r-- | activerecord/lib/active_record/associations/collection_association.rb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index 67a1e457be..2c852f6efc 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -409,7 +409,7 @@ module ActiveRecord if mem_index mem_record = memory.delete_at(mem_index) - (record.attribute_names - mem_record.changes.keys).each do |name| + ((record.attribute_names & mem_record.attribute_names) - mem_record.changes.keys).each do |name| mem_record[name] = record[name] end |