Versions and Environment

Vuetify: 1.5.14
Vue: 2.6.10
Browsers: Chrome 74.0.3729.169
OS: Windows 10

Steps to reproduce

1. Insert a v-select
2. Create a div with an id
3. Add this attribute to the v-select: :menu-props="{ attach: '#yourId' }"
4. Inspect DOM to locate the menu: it is at the application root instead of inside the div with the id

Expected Behavior

The menu generated by v-select should be a child of the div with the id

Actual Behavior

The menu is attached to the root element of the Vue app

Reproduction Link

https://codepen.io/sarahtheflame/pen/MMyzPb

Other comments

I included a basic menu in the codepen with the expected functionality. The attach property works in a simple menu, but not when passed from a v-select by menu-props