In our recent datagrid updates, we gave the ReviewSummaryColumn a

link_css_class of review-request-link. This is the class used for

review request info boxes, which takes the cell's href target and uses

that to create the review request info box. The href target for review

summary cells is the review URL, but the review request info box

requires a review request URL to work properly. This was causing a bug

where the info box was populated with a poorly formatted review request

page.
Previously we didn't set the link_css_class for the

ReviewSummaryColumn, which meant that the review request info box

wouldn't show up when hovering over the review request summary of the

column. This change fixes the bug and improves the behaviour, we now

supply the review request URL to the info box through the column's

render context and a custom template for the review summary cells.

Ran unit tests.
Hovered over review summary column cells, saw the bug was fixed.
Hovered over review request summary column cells.