### Vue.js / vue-router versions \>= 2.1.2 ### Reproduction Link https://jsbin.com/satalijiga/edit?js,console ### Steps to reproduce Give a child route a name, add an alias to the parent ### What is actually happening? The console is blasted with warnings about duplicate named route definitions. This happened at 2.1.2 > "[vue-router] Duplicate named routes definition: { name: \"test.subpage\", path: \"/subpage\" }"