Not possible to sort budget sum

[td00]

https://example.com/budgets?sort=orders_sum leads to
"An error occured on the server side. If this persists, contact the administrator of your installation."

[morremeyer]

Cannot resolve keyword 'orders_sum' into field. Choices are: id, members, name, orders

[td00]

squirrel/squirrel/orders/tables.py

Line 88 in 929e84f

fields = ["name", "orders_sum"]

Consider a change here.

[td00]

Sorting "Order sum" redirects to buggy URL