router-view:key="$route.path" hot reload

[ccqgithub]

What problem does this feature solve?

now, if i use router-view with key like this:

        <div class="sma-mod">
          <transition name="mod">
            <keep-alive>
              <router-view
                :key="$route.path"
                ref="router"
              ></router-view>
            </keep-alive>
          </transition>
        </div>

when i modify js, the current component disappear, when i modify template or style, it is right.

want: can hot reload with key router-view

What does the proposed API look like?

        <div class="sma-mod">
          <transition name="mod">
            <keep-alive>
              <router-view
                :key="$route.path"
                ref="router"
              ></router-view>
            </keep-alive>
          </transition>
        </div>

[posva]

Tested with vue-cli@beta and the problem seems related to the presence of keep-alive but happens without the router. Could you report this back to vue-loader?