It seems like a regression was introduced to the datagrid expand behavior, it adds `Row: 3, Column: 6:` which was not the case before. * Json objects can be tested on this [docs page](https://elastic.github.io/eui/#/tabular-content/data-grid-schemas-and-popovers):  * Arrays before regression:  * Arrays after regression: <img width="324" alt="Screenshot 2021-07-16 at 10 04 05" src="https://user-images.githubusercontent.com/1261626/125914367-086f4fcb-d01a-4dce-a26f-5b99d29b3de1.png">
It seems like a regression was introduced to the datagrid expand behavior, it adds
Row: 3, Column: 6:which was not the case before.