Cant Select Updated Node

I run this query first, it create a node:
`CREATE (n:AttributesType {id: 'a'}) return n`
then I update it with following query:
```
MATCH (n:AttributesType {id: 'a'})
SET n+={id: 'a2'}
RETURN n
```
now this query is returning 0 nodes, but it should return 1 node:
`MATCH (n:AttributesType {id: 'a2'}) RETURN n`