Redirect to HTTPS not working when GlobalExtAuth is set

[SamMHD]

What steps did you take and what happened:

• Set GlobalExtAuth
• Set AuthPolicy.disabled on some route
• Set PermitInsecure to false on that route
• Send a Plain HTTP request to that route.

** Even AuthContext won't be set on route in this case**

What did you expect to happen: what I expect is that Envoy redirect me to HTTPS but it won't because globalExtAuth is set (even though it is disabled on route)