Uncaught DOMException: Failed to execute 'measure' on 'Performance': The mark 'start <Transition>' does not exist.

[sqal]

Vue.js version

2.2.3

Reproduction Link

2.2.3 broken - https://jsfiddle.net/r3mxep1x/
2.2.2 - https://jsfiddle.net/8t85p6jw/

Steps to reproduce

• Check the console in 2.2.3, you'll see that Vue throws DOMException
• Remove root transition or from Comp component - no exception, app works again

What is Expected?

I expect this simple example to work and not see any DOMException errors.

What is actually happening?

When perfomance option is enabled and we have a component which uses <transition> and its slot has another component also with <transition>, Vue cannot handle this and throws DOMException mentioned in the title.

[sqal]

@posva just to let you know because you already marked this as regression, I've simplified my reproduction, but generally it still shows what the problem is