[7.0.3] Filter with Related Fields don't maintain values

[andrelouca69]

🐞 bug report
I added a field from a related table on the product "All" filter and used the filter on the "SSingleOrders" product selection.
When filtering the products on the table field the filter maintains and permit more filtering, but when filtering on the related table fields on the filter, the word written on the filter is automically deleted.

🔥 How to trigger the error
1- Add a related table field on the table products (example: Tickets);
2 - Add the related field to the Products main filter ("All");
3 - Use the filter on the product search on "Sales Orders" module;

👎 Actual Behavior
It should maintain the written filter while filtering;