Backfill query parameter test to document correct encoding of pipe char in parameters

[tonytw1]

What does this change?

Test to eliminate query parameter encoder from enquires.

How to test

How can we measure success?

Have we considered potential risks?

Test only. Should be low risk.

Images

Accessibility

• [ ] Tested with screen reader
• [ ] Navigable with keyboard
• [ ] Colour contrast passed
• [ ] The change doesn't use only colour to convey meaning