Dashboard: If table (from data.sql.in) comes back empty, clicking on empty table link produces different document

[Colossus]

It's a little hard to explain, but I'll try here:

• Assume you have some "main" report somewhere (README.md.in)
• Assume you have a table report somewhere else (generated from data.sql.in)
• Assume the select query for the table comes back empty
• When clicking on the report of the data.sql.in table, the README.md.in will show instead