We are using the standard Fiscal Year field to filter our dashboards. The dashboard filters have always auto-changed the value of 2017, to "2,017". I cannot edit the standard fiscal year field type (as far as I am aware) to remove the comma. This has not been an issue for our dashboard filters in Classic, but it is now an issue for our users in Lightning. When they drill down to a report from a component filtered by fiscal year, the report displays an error: "For the filter 7: Invalid number,". Is this expected functionality or is there something I can do to fix this issue?

Note: I am able to replace the dashboard filter with a filter on close dates between the start and end of the fiscal years, but I am hoping for an easier solution.