Internal issue 2847 - Colspan Only Applying to Header Row in Data Table

When setting the colspan property in the canary Data Table component, it updates the colspan of the header row in the table, but the rows cells in the rows below do not adhere to the colspan specified.

https://stackblitz.com/edit/qfrquz?file=src%2Fapp.tsx

Start with the StackBlitz reproduction linked in the issue and inspect the canary Data Table behavior when colspan is set. Verify how the header row and body rows render the property, then confirm that the specified colspan is applied consistently to the rows below the header.

Written by the indexing model from the issue text.