UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36

Steps to reproduce the problem:
1. Go to test page https://codepen.io/jakob-e/pen/GXJNda
2. Check apply transitions 

What is the expected behavior?
Transitions working on inherited properties (and CSS Variables)
(Works in Safari Version 11.1.2 (13605.3.8))

What went wrong?
SVG fill colors returns to their default values (black or CSS Variable fallback)

Did this work before? No 

Does this work in other browsers? N/A

Chrome version: 68.0.3440.106  Channel: stable
OS Version: OS X 10.13.6
Flash Version: