Unusual Code box appearing on Route To Actions

Environment

Discourse Version: 2.9.0.beta12 (7be53b15)

Plugin Commit: 754a0c69

Steps to Reproduce

A picture tells 1000 words:

Example

https://forum.hinz.org.nz

Private forum

Logs

@NathanK Could you PM me the wizard json?

Well, I could have except I hacked it in order to fix it and make it do what I want (i.e. enter something in the output field).

But the problem persists with the Code bit. Here is the .json:

Welcome New.json (12.8 KB)

This is still a problem (latest commit):

It occurs when:

  1. The Route To action is selected
  2. Conditionality is used in the first field

What is the Code field for, anyway?

Example:

https://coop.pavilion.tech/admin/wizards/wizard/composer_bugs

Workarounds

  1. Hide the offending element using the browser dev tools
  2. Hack the Wizard .json