Redmine

The CSV export gained the ability to display all sorts of columns through #4742 (tested with Redmine r8808, 1.3-stable branch), but the current implementation bypasses the column API, thereby breaking custom columns (e.g. provided by plugins).

issues_to_csv calls value = issue.send(column.name) for non-custom-field columns, even though QueryColumn defines #value(issue) to retrieve the column's value, if I understand that correctly.