NPE thrown when trying to delete deployment details of a non-existing release

Steps to replicate

1. Create a deployment release
2. Run deployment
3. Delete the release. This will delete the release but retains the deployment history
4. Now try to delete the deployment logs as per the screenshot
   
5. Bamboo will throw the NPE below:

   2014-05-30 20:53:55,423 INFO [http-bio-10555-exec-21] [AccessLogFilter] admin POST http://localhost:10555/bamboo55/deploy/deleteDeploymentResult.action 201261kb
   2014-05-30 20:53:55,449 ERROR [http-bio-10555-exec-21] [ExceptionMappingInterceptor] null
   java.lang.NullPointerException
   	at com.atlassian.bamboo.deployments.versions.service.DeploymentVersionLinkedJiraIssuesServiceImpl.getIssuesChangedForDeploymentResult(DeploymentVersionLinkedJiraIssuesServiceImpl.java:155)
   	at com.atlassian.bamboo.deployments.results.service.DeploymentResultDeletionServiceImpl.delete(DeploymentResultDeletionServiceImpl.java:84)
   	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.lang.reflect.Method.invoke(Method.java:601)
   	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
   	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
   	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
   	at com.atlassian.bamboo.security.acegi.intercept.aopalliance.AuthorityOverrideMethodSecurityInterceptor.invoke(AuthorityOverrideMethodSecurityInterceptor.java:29)
   	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
   	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
   	at $Proxy135.delete(Unknown Source)
   	at com.atlassian.bamboo.deployments.execution.actions.DeleteDeploymentResult.doDelete(DeleteDeploymentResult.java:65)
   	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.lang.reflect.Method.invoke(Method.java:601)
   	at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)
   	at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)
   	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252)
   	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:100)
   	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
   	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:100)
   	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
   	at com.atlassian.bamboo.ww2.interceptors.FieldErrorUsageVerifier.intercept(FieldErrorUsageVerifier.java:49)
   	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)