[DMN Editor] Ensure UI model has hashCode/equals implementations ---------------------------------------------------------------- Key: DROOLS-1966 URL: https://issues.jboss.org/browse/DROOLS-1966 Project: Drools Issue Type: Task Components: DMN Editor Reporter: Michael Anstis Assignee: Michael Anstis Fix For: 7.5.0.Final See https://github.com/kiegroup/kie-wb-common/pull/920 (for Stunner's implementation).