[Bug Report] v-tab does not deactivate when route changes to a non-tabbed route

Versions and Environment

Vuetify: 1.5.1 Vue: 2.6.4 Browsers: Chrome 72.0.3626.109 OS: Mac OS 10.13.6

Steps to reproduce

Using vue-router and the :to parameter. Create a route in your app that is not available via v-tab. Navigate to it and see that the previously selected route/tab is still showing as active in the v-tab

Expected Behavior

De-activate tab if route does not match the tab.

Actual Behavior

Previously selected tab stays active even when route changes.

Reproduction Link

https://codepen.io/lucille2/pen/bzMmPQ

Other comments

In my app I use a v-toolbar header with tabs in the extension slot and an account menu in the main slot. The account menu can go to routes that are not available as tabs. But I cannot de-activate the v-tab when the user goes to one of those other routes. **Using vue-router

[randanunn]

@dsldiesel you have to set `:optional=“true”.

[dsldiesel]

Not working for me! V-tab item stays selected when navigating to a route that’s not within tab route links.