P2: Checkboxes disappear on search result page

The ToDo checkboxes disappear on a Make P2 search results page.

https://make.wordpress.org/polyglots/tag/editor-requests/ (ok)
https://make.wordpress.org/polyglots/?resolved=unresolved&tags=editor-requests (ok)
https://make.wordpress.org/polyglots/?s=request (not ok)

This is also happening on a local install.

Steps to reproduce:

1. Create a post with a checklist
2. Search for a word in the new checklist
3. You will not see checkboxes on the posts within the search result screen (checkboxes still appear in the comment area)

Reproduce the issue using the provided search URL or a local install by creating a post with a checklist and searching for its text. Compare the search-results rendering with the working tag and unresolved views; done means checklist checkboxes appear in posts on the search results page while remaining visible in comments.

Written by the indexing model from the issue text.