Multiple AuthService with same prefix generates CONFIGURATION ERRORS

[pims]

Describe the bug

When specifying 2 auth services, with identical path_prefix, the diagnostic dashboard reports conflicting information: CONFIGURATION ERROR and weighted routes.

To Reproduce

1. Add two kind: AuthService annotations to two different services.
2. Make sure path_prefix is identical for both
3. Make sure name is different for both
4. Make sure auth_service points to the two different services

Expected behavior
I’d expect no configuration error for multiple auth_service values since the documentation states:

You may use multiple AuthService manifests to round-robin authentication requests among multiple services. Note well that all services must use the same path_prefix and header definitions; if you try to have different values, you'll see an error in the diagnostics service, telling you which value is being used.

Versions (please complete the following information):

• Ambassador: 0.50-rc4
• Kubernetes environment GKE
• Version: Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.7", GitCommit:"0c38c362511b20a098d7cd855f1314dad92c2780", GitTreeState:"clean", BuildDate:"2018-08-20T10:09:03Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"darwin/amd64"} Server Version: version.Info{Major:"1", Minor:"10+", GitVersion:"v1.10.7-gke.11", GitCommit:"fa90543563c9cfafca69128ce8cd9ecd5941940f", GitTreeState:"clean", BuildDate:"2018-11-08T20:22:21Z", GoVersion:"go1.9.3b4", Compiler:"gc", Platform:"linux/amd64"}

[kflynn]

Fixed in RC6.