Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy. This is related to a jwt_authenticator.cc segmentation fault.Referenceshttps://istio.io/about/notes/https://github.com/istio/istio/issues/15084https://github.com/istio/istio.io/pull/4555
