[Bug Report] v-menu doesn't show content when value prop set to true

[royprigat]

Versions and Environment

Vuetify: 1.4.0
Vue: 2.5.21
Browsers: Chrome 71.0.3578.98
OS: Windows 10

Steps to reproduce

Run the reproduction link

Expected Behavior

When the v-menu's value prop is set to true, show the content it holds

Actual Behavior

The v-menu does not open

Reproduction Link

https://codesandbox.io/s/215o8lx1oy

Other comments

This would work if the value prop is initialized to false, and then changed to true. But I am looking to manually trigger the v-menu without this condition.

[blalan]

This is the only way I could get it to work as well: https://codesandbox.io/s/9qlxljpy0p

[KaelWD]

Possibly related to #5890 (comment)