### Version 2.2.0 ### Reproduction link [https://jsfiddle.net/7mda66b9/9/](https://jsfiddle.net/7mda66b9/9/) ### Steps to reproduce * create vuex namespaced module **A** * create vuex NOT namespaced nested module **B** inside **A** * use mapState with namespace **A** ### What is expected? it is expected to get state of module **A** in mapState ### What is actually happening? mapState provides state of module **B** <!-- generated by vue-issues. DO NOT REMOVE -->