feat(history): allow same route navigation

[boycce]

To get the component to build a fresh instance you need to add a key attribute i.e <router-view :key="$route.id"></router-view>. Regardless the vue-router hooks still fire when reloading.

Issue: #974
Related: #2957 #2430

[pedzed]

While this is not yet implemented, how could you force a refresh when the query changes in <router-link>?

[n10000k]

@pedzed you can do a watch on the route

[pedzed]

@narwy Can you give an example? Or refer me to some reading material? Thanks.

[posva]

Thank you but this doesn't implement #974

Removing the duplicated navigation would be a breaking change, so the change is v4 only (per vuejs/rfcs#150)