How to override deployment in BRMS/BPM Suite 6?

Issue

We are following below steps:

1. Create simple steps in bpmn model.
2. Build and deploy project
3. run test either via a remote client or from business central Process deployment and start new process
4. add more bpmn process and try to build kjar,but build fails with exception:

ERROR [org.jbpm.console.ng.bd.backend.server.DeploymentManagerEntryPointImpl] (http-localhost.localdomain/127.0.0.1:8080-4) Deployment of unit com.sample:TestProject:1.0.13 failed: unit already deployed! (override deployment: false): org.jbpm.console.ng.bd.exception.DeploymentException: unit already deployed! (override deployment: false)
    at org.jbpm.console.ng.bd.backend.server.DeploymentManagerEntryPointImpl.process(DeploymentManagerEntryPointImpl.java:526) [jbpm-console-ng-business-domain-backend-6.3.0.Final-redhat-5.jar:6.3.0.Final-redhat-5]
    at org.jbpm.console.ng.bd.backend.server.DeploymentManagerEntryPointImpl$Proxy$_$$_WeldClientProxy.process(DeploymentManagerEntryPointImpl$Proxy$_$$_WeldClientProxy.java) [jbpm-console-ng-business-domain-backend-6.3.0.Final-redhat-5.jar:6.3.0.Final-redhat-5]