APIM test console is url encoding slash when forwarding to backend - any way not to do that?

Question

I have defined a frontend GET /*
I run test from Az portal APIM test console and use svc/v3 as my template parameter value.
The portal test console URL encode the svc/v3 to svc%2Fv3

But when the request gets forwarded to backend, the backend sees the URI as svc%2Fv3

So the backend responds path not found.
Tracing screen shot attached
If I run the same from postman or curl it works because postman/curl doesnt URL encode it by default.

Is there anything in portal -> test console to tell it not to URL encode it?