Adding a condition on either a question or group within Umbraco forms does not work

[TrissM]

Adding a condition on either a question or group within Uno Umbraco forms does not work.

Reproduction

1. Create a new form within Uno Umbraco Forms
2. Create a dropdown with yes/no values question within group, let's label it Question A
3. Create another group within page
4. On group just created, click the settings cog and check enable conditions
5. Condition should be show this fieldset if all of the following match: Question A is Yes
6. Click Submit
7. Save Form
8. Add Form to a test page
9. Preview Form

Bug summary

The form isn't adhering to conditions and within the developer console I can see the following error:

it appears to be this reported error

https://our.umbraco.com/forum/using-umbraco-and-getting-started/102784-conditional-logic-in-umbraco-forms-841

[AndyButland]

Looks like this is related too: #273

Which was closed, but I can replicate the issue still and have now resolved via the linked PR. Due in 8.7.0.