Sam Woolerton

[Looks like ridge plots are supported now](https://vega.github.io/editor/#/url/vega-lite/N4KABGBEAkDODGALApgWwIaQFxUQFzwAdYsB6UgN2QHN0A6agSz0QFcAjOxge1IRQyUa6ALQAbZskoAWOgCtY3AHaQANOCgATdHkw5gkVgCcx2LTvSlU3Co2Sx5ilQF91ESHiPolsAGbcjVGwAbQ0IYCh4dDF4VjEdZDNIWAl4ZAAKbTxWVDoAJWQxZHRYZAB9ABEE1TARaQBKNSgSpIBPYqNIMFcwsFAIAa1kH2ZWpIBJAFkKgCEyvJ1GJWo1Xvd2b00Ad0ZNFjMABjoAZjdBqGojblZCdjGcYMh29E6AXV6ewYjIX0YxPGQnRwkCyOTozyMYAAfGAAEwHBFgABkSLAoNyELAAB44QiABxdZwaV5nH7oNJ4Mz9AY-OxiTRtDqrQYeVqERLAgKaJbRSAaT5QWDs+BU3qQeLtIFgYLUlk7PaIMzwg5nFkoRjUfBmY4I1U0jBGADWSRexWZ50gw3g3G5y1F5xpAA97Q6ab9CgzgRRoqxEnqHR5mEUJtMZmAFnglit-Ra8GyOVAAI6sbyR3SRqh813dGPue59NYW930pKaYawUbm7Os9lJZOp5iLTO5mnoR2MWBmJRxMSFiBEh0DgbOd79kBEoA) (can groupby in density transform), haven't figured out how to pull off violin plots yet though

Just encountered this too. Interestingly, only happens when dev server has `--hot` flags for HMR, removing that prevents the error for me

I've hit a similar issue a couple of times, and breaking out the repeated markup didn't really make sense as it was tightly coupled to the parent component and couldn't...