Vue 2 does not chain event listeners like Vue 1 #3478
Description
Vue.js version
2.0.0-rc.2
Reproduction Link
Vue 1: https://jsfiddle.net/pkb7gnxu/
Vue 2: https://jsfiddle.net/xmqmqem0/1/
Steps to reproduce
The examples chain key listeners in Vue 1 and Vue 2: @keydown.enter.tab.prevent="incEvents"
Click in the input field, then press either tab or enter in both examples. Vue 2 does not behave the same as Vue 1.
What is Expected?
Vue 2 should chain listeners like Vue 1, or warn about bad syntax if that feature is deprecated.
What is actually happening?
Vue 2 ignores the events.