[Bug Report] v-menu activator switching causes console errors

[DanielRivers]

Versions and Environment

Vuetify: 1.4.4
Vue: 2.5.22
Browsers: Chrome 72.0.3626.81
OS: Windows 10

Steps to reproduce

Press the button and will result in error to the console.

Expected Behavior

Switch activator with no error

Actual Behavior

Errors to the console.

[Vue warn]: Error in callback for watcher "activator": "TypeError: t.removeEventListener is not a function"

TypeError: t.removeEventListener is not a function

Reproduction Link

https://codepen.io/anon/pen/JxWgqq

Other comments

This fiddle was put together by a Jacek from another fiddle I showed as example. I have seen errors to do with both adding and removing of the eventListener

[KaelWD]

Basically #5890 (comment), external activators are a bit broken atm

[DanielRivers]

Thanks @KaelWD - I can see there is currently no milestone on #5890 is there an idea when this may be addressed?

[KaelWD]

Workaround is to pass Element objects instead of a selector: https://codepen.io/anon/pen/aMyYmW?editors=1010

[KaelWD]

Going to mark as duplicate of #5890, there's a bunch of similar issues that should really be addressed at the same time.