Program: 129150
Project: 129150
Buggy source:
public void updateItemVersion(Item baseItem,String oldVersion,String id,Map<String,String> versions,boolean avoidSaveProject) throws PersistenceException {
  IProxyRepositoryFactory factory=CoreRuntimePlugin.getInstance().getProxyRepositoryFactory();
  IRepositoryViewObject obj=factory.getSpecificVersion(id,oldVersion,avoidSaveProject);
  Item item=obj.getProperty().getItem();
  Project currentProject=ProjectManager.getInstance().getCurrentProject();
  Project project=new Project(ProjectManager.getInstance().getProject(item));
  if (!loaded) {
    loadRelations();
  }
  if (!currentProject.equals(project)) {
    return;
  }
  ProcessType processType=null;
  if (item instanceof ProcessItem) {
    processType=((ProcessItem)item).getProcess();
  }
  if (item instanceof JobletProcessItem) {
    processType=((JobletProcessItem)item).getJobletProcess();
  }
  for (  Object o : processType.getNode()) {
    if (o instanceof NodeType) {
      NodeType currentNode=(NodeType)o;
      if ("String_Node_Str".equals(currentNode.getComponentName())) {
        String jobIdStr=null;
        String jobVersion=LATEST_VERSION;
        String nowVersion="String_Node_Str";
        Set<String> jobIdSet=new HashSet<String>();
        for (        Object o2 : currentNode.getElementParameter()) {
          if (o2 instanceof ElementParameterType) {
            ElementParameterType param=(ElementParameterType)o2;
            if (param.getName().equals("String_Node_Str") || param.getName().equals("String_Node_Str")) {
              String jobIds=param.getValue();
              String[] jobsArr=jobIds.split(RelationshipItemBuilder.COMMA);
              for (              String jobId : jobsArr) {
                if (StringUtils.isNotEmpty(jobId)) {
                  jobIdSet.add(jobId);
                }
                jobIdStr=jobId;
              }
            }
            if (param.getName().equals("String_Node_Str") || param.getName().equals("String_Node_Str")) {
              jobVersion=param.getValue();
              if (jobVersion.equals(LATEST_VERSION)) {
                if (!versions.isEmpty()) {
                  nowVersion=versions.get(jobIdStr);
                  param.setValue(nowVersion);
                }
              }
            }
          }
        }
        for (        String jobId : jobIdSet) {
          addRelationShip(item,jobId,nowVersion,JOB_RELATION);
          factory.save(project,item);
        }
      }
    }
  }
  if (!avoidSaveProject) {
    saveRelations();
  }
}

Fixed version (ground truth):
public void updateItemVersion(Item baseItem,String oldVersion,String id,Map<String,String> versions,boolean avoidSaveProject) throws PersistenceException {
  IProxyRepositoryFactory factory=CoreRuntimePlugin.getInstance().getProxyRepositoryFactory();
  IRepositoryViewObject obj=factory.getSpecificVersion(id,oldVersion,avoidSaveProject);
  Item item=obj.getProperty().getItem();
  Project currentProject=ProjectManager.getInstance().getCurrentProject();
  Project project=new Project(ProjectManager.getInstance().getProject(item));
  if (!loaded) {
    loadRelations();
  }
  if (!currentProject.equals(project)) {
    return;
  }
  ProcessType processType=null;
  if (item instanceof ProcessItem) {
    processType=((ProcessItem)item).getProcess();
  }
  if (item instanceof JobletProcessItem) {
    processType=((JobletProcessItem)item).getJobletProcess();
  }
  if (processType != null) {
    for (    Object o : processType.getNode()) {
      if (o instanceof NodeType) {
        NodeType currentNode=(NodeType)o;
        if ("String_Node_Str".equals(currentNode.getComponentName())) {
          String jobIdStr=null;
          String jobVersion=LATEST_VERSION;
          String nowVersion="String_Node_Str";
          Set<String> jobIdSet=new HashSet<String>();
          for (          Object o2 : currentNode.getElementParameter()) {
            if (o2 instanceof ElementParameterType) {
              ElementParameterType param=(ElementParameterType)o2;
              if (param.getName().equals("String_Node_Str") || param.getName().equals("String_Node_Str")) {
                String jobIds=param.getValue();
                String[] jobsArr=jobIds.split(RelationshipItemBuilder.COMMA);
                for (                String jobId : jobsArr) {
                  if (StringUtils.isNotEmpty(jobId)) {
                    jobIdSet.add(jobId);
                  }
                  jobIdStr=jobId;
                }
              }
              if (param.getName().equals("String_Node_Str") || param.getName().equals("String_Node_Str")) {
                jobVersion=param.getValue();
                if (jobVersion.equals(LATEST_VERSION)) {
                  if (!versions.isEmpty()) {
                    nowVersion=versions.get(jobIdStr);
                    param.setValue(nowVersion);
                  }
                }
              }
            }
          }
          for (          String jobId : jobIdSet) {
            addRelationShip(item,jobId,nowVersion,JOB_RELATION);
            factory.save(project,item);
          }
        }
      }
    }
  }
  if (!avoidSaveProject) {
    saveRelations();
  }
}