Reactivity lost

[BonBonSlick]

SO issue description
https://stackoverflow.com/questions/42295340/how-to-clear-state-in-vuex-store

Update after using the below solution a bit more
So it turns out that if you use replaceState with an empty object ({}) you end up bricking reactivity since your state props go away. So in essence you have to actually reset every property in state and then use store.replaceState(resetStateObject). For store without modules you'd essentially do something like:
....

So state, getters show old values even though store was reset