OpenShift 4.2 Authentication pods crash when a badly formatted certificate is provided

Issue

• I would expect the authentication-operator to check the formatting before propagating to Pods.
• The following error was seen in OAuth pod logs after configuring a new IDP client keypair per this documentation.

panic: Error building BasicAuthPasswordIdentityProvider client: error loading x509 keypair from cert file /var/config/user/idp/0/secret/v4-0-config-user-idp-0-tls-client-cert/tls.crt and key file /var/config/user/idp/0/secret/v4-0-config-user-idp-0-tls-client-key/tls.key: tls: failed to find any PEM data in certificate input

goroutine 1 [running]:
github.com/openshift/oauth-server/pkg/oauthserver.(*OAuthServerConfig).buildHandlerChainForOAuth(0xc000461500, 0x1be6b00, 0xc0003a03e0, 0xc0002a8c40, 0x16b57a0, 0xc0005e9638)
    /go/src/github.com/openshift/oauth-server/pkg/oauthserver/oauth_apiserver.go:303 +0xee
github.com/openshift/oauth-server/vendor/k8s.io/apiserver/pkg/server.completedConfig.New.func1(0x1be6b00, 0xc0003a03e0, 0x1be6b00, 0xc0003a03e0)
    /go/src/github.com/openshift/oauth-server/vendor/k8s.io/apiserver/pkg/server/config.go:444 +0x45
github.com/openshift/oauth-server/vendor/k8s.io/apiserver/pkg/server.NewAPIServerHandler(0x18dc66b, 0xf, 0x1c1b7c0, 0xc0004bbec0, 0xc0003a0380, 0x0, 0x0, 0x0)
    /go/src/github.com/openshift/oauth-server/vendor/k8s.io/apiserver/pkg/server/handler.go:96 +0x2fc
github.com/openshift/oauth-server/vendor/k8s.io/apiserver/pkg/server.completedConfig.New(0xc0002a8c40, 0x0, 0x0, 0x18dc66b, 0xf, 0x1c378a0, 0x2bc4f80, 0xc0002a8c40, 0x0, 0x0)
    /go/src/github.com/openshift/oauth-server/vendor/k8s.io/apiserver/pkg/server/config.go:446 +0x124
github.com/openshift/oauth-server/pkg/oauthserver.completedOAuthConfig.New(0xc0003a0360, 0xc000461508, 0x1c378a0, 0x2bc4f80, 0x4, 0x1c00dc0, 0xc000610e00)
    /go/src/github.com/openshift/oauth-server/pkg/oauthserver/oauth_apiserver.go:286 +0x70
github.com/openshift/oauth-server/pkg/cmd/oauth-server.RunOsinServer(0xc000258600, 0xc00009c720, 0xd07, 0xf07)
    /go/src/github.com/openshift/oauth-server/pkg/cmd/oauth-server/server.go:40 +0x8a
github.com/openshift/oauth-server/pkg/cmd/oauth-server.(*OsinServer).RunOsinServer(0xc00048ce80, 0xc00009c720, 0x5ac320, 0x16a1ce0)
    /go/src/github.com/openshift/oauth-server/pkg/cmd/oauth-server/cmd.go:91 +0x35c
github.com/openshift/oauth-server/pkg/cmd/oauth-server.NewOsinServer.func1(0xc0001fc500, 0xc0004a4a40, 0x0, 0x2)
    /go/src/github.com/openshift/oauth-server/pkg/cmd/oauth-server/cmd.go:39 +0xf4
github.com/openshift/oauth-server/vendor/github.com/spf13/cobra.(*Command).execute(0xc0001fc500, 0xc0004a49e0, 0x2, 0x2, 0xc0001fc500, 0xc0004a49e0)
    /go/src/github.com/openshift/oauth-server/vendor/github.com/spf13/cobra/command.go:760 +0x2ae
github.com/openshift/oauth-server/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc0001fc280, 0xc0001fc280, 0x0, 0x0)
    /go/src/github.com/openshift/oauth-server/vendor/github.com/spf13/cobra/command.go:846 +0x2ec
github.com/openshift/oauth-server/vendor/github.com/spf13/cobra.(*Command).Execute(...)
    /go/src/github.com/openshift/oauth-server/vendor/github.com/spf13/cobra/command.go:794
main.main()
    /go/src/github.com/openshift/oauth-server/cmd/oauth-server/main.go:41 +0x2cf