Wiki Style Renderer does not work for custom Single Line Text fields

Summary

When creating a custom field, regardless of what is configured it uses the Default Text Renderer in Bento.

Steps to Reproduce

1. Create a custom field (eg: multi-text)
2. Set the renderer to Wiki Style and add the field to a Screen

Expected Results

The formatting is rendered

Actual Results

The format is not rendered and the contents of the field are displayed in the Default text

Workaround

Turn off new Issue view in Labs