Waterfalls reacting weirdly for connector line thickness

The following CodePen emulates the `react()` calls that the RCE emits: https://codepen.io/nicolaskruchten/pen/vMdPNp?editors=0010 ... basically it mutates the figure and returns it with the identity of the `data` array changed, in order to trigger the `react()` logic. This works everywhere except `connector.line.width` in waterfalls for some reason ...