#308 Sometimes table cells display as empty for no discernable reason

[Genreless]

As an example, a "ship_names_tables" table exported from DAVE will display blank entries in the "name_group" cell even though there is a value displayed there in the schema editor and the filters pane creates filters that work with the value shown in the schema editor. Another example is "unit_regiment_names_tables.name_group". A notable commonality is that all of these cells have fkey values.