Fix catch-up subscription onCancelled on leader change#396

w1am merged 2 commits into

trunkkurrent-io/KurrentDB-Client-Java:trunkfrom

w1am/dev-1817-java-client-notleader-redirect-npes-in-readresponseobserverkurrent-io/KurrentDB-Client-Java:w1am/dev-1817-java-client-notleader-redirect-npes-in-readresponseobserverCopy head branch name to clipboard