Program: 143401
Project: 143401
Buggy source:
@Override public void touchForm(Form form,String realInstanceName,boolean async){
  if (form == null)   return;
  String formName=realInstanceName == null ? form.getName() : realInstanceName;
  String formUrl=getRealFormURLAndSeeIfItIsACopy(form,formName,false).getLeft();
  boolean nowSentToClient=getEndpoint().addFormIfAbsent(formName,formUrl);
  if (nowSentToClient) {
    updateController(form,formName,!async,new FormHTMLAndJSGenerator(getSession().getClient(),form,formName));
    Debug.debug("String_Node_Str" + async + "String_Node_Str"+ form.getName());
  }
 else {
    formUrl=getEndpoint().getFormUrl(formName);
    Debug.debug("String_Node_Str" + async + "String_Node_Str"+ form.getName());
  }
  if (!async) {
    if (!getEndpoint().isFormCreated(formName)) {
      if (!nowSentToClient) {
        websocketSession.getClientService(NGRuntimeWindowManager.WINDOW_SERVICE).executeAsyncServiceCall("String_Node_Str",new Object[]{formName});
      }
      Debug.debug("String_Node_Str" + async + "String_Node_Str"+ form.getName());
      try {
        sendChanges();
      }
 catch (      IOException e) {
        Debug.error(e);
      }
      try {
        websocketSession.getEventDispatcher().suspend(formUrl,IWebsocketEndpoint.EVENT_LEVEL_SYNC_API_CALL,EventDispatcher.CONFIGURED_TIMEOUT);
      }
 catch (      CancellationException e) {
        throw e;
      }
catch (      TimeoutException e) {
        throw new RuntimeException("String_Node_Str" + form.getName() + "String_Node_Str",e);
      }
    }
  }
}

Fixed version (ground truth):
@Override public void touchForm(Form form,String realInstanceName,boolean async){
  if (form == null)   return;
  String formName=realInstanceName == null ? form.getName() : realInstanceName;
  String formUrl=getRealFormURLAndSeeIfItIsACopy(form,formName,false).getLeft();
  boolean nowSentToClient=getEndpoint().addFormIfAbsent(formName,formUrl);
  if (nowSentToClient) {
    IWebFormUI formUI=(IWebFormUI)getForm(form.getName());
    if (formUI.getParentContainer() == null) {
      String currentWindowName=getCurrentWindow().getName();
      if (currentWindowName == null) {
        currentWindowName=websocketSession.getClient().getRuntimeWindowManager().getMainApplicationWindow().getName();
      }
      formUI.setParentWindowName(currentWindowName);
    }
    updateController(form,formName,!async,new FormHTMLAndJSGenerator(getSession().getClient(),form,formName));
    Debug.debug("String_Node_Str" + async + "String_Node_Str"+ form.getName());
  }
 else {
    formUrl=getEndpoint().getFormUrl(formName);
    Debug.debug("String_Node_Str" + async + "String_Node_Str"+ form.getName());
  }
  if (!async) {
    if (!getEndpoint().isFormCreated(formName)) {
      if (!nowSentToClient) {
        websocketSession.getClientService(NGRuntimeWindowManager.WINDOW_SERVICE).executeAsyncServiceCall("String_Node_Str",new Object[]{formName});
      }
      Debug.debug("String_Node_Str" + async + "String_Node_Str"+ form.getName());
      try {
        sendChanges();
      }
 catch (      IOException e) {
        Debug.error(e);
      }
      try {
        websocketSession.getEventDispatcher().suspend(formUrl,IWebsocketEndpoint.EVENT_LEVEL_SYNC_API_CALL,EventDispatcher.CONFIGURED_TIMEOUT);
      }
 catch (      CancellationException e) {
        throw e;
      }
catch (      TimeoutException e) {
        throw new RuntimeException("String_Node_Str" + form.getName() + "String_Node_Str",e);
      }
    }
  }
}