Table View crashes with repeat group changing between versions in a particular way

[magicznyleszek]

Description

The error is Objects are not valid as a React child (found: object with keys {foo/bar}). If you meant to render a collection of children, use an array instead.. This means some piece of code we have (our code, or react-table) is getting some unexpected value in a place where it expected to render something simple.

It's hard to reproduce it locally - the only way to achieve it right now is to use https://github.com/kobotoolbox/kobo-transfer/.

Steps to Reproduce

1. Create a copy of the project on your local machine (get it from Zulip topic linked below)
2. Deploy
3. Use kobo-transfer to get the exact data
4. Go to Data Table
5. Page loads and then whole JS app crashes 🐛

Expected behavior

It should not crash, but rather render something useful (or render nothing, if useful is not achieveable).

Additional details

Community post: https://community.kobotoolbox.org/t/unable-to-fetch-data-from-the-humanitarian-server-for-editing/32175
Zulip topic (with some more private details): https://chat.kobotoolbox.org/#narrow/stream/6-Support/topic/Table.20view.20issues/near/140597