Is the AgContact model repeated in the include and its parent?  That will certainly cause problems. 

I have check all the models.All models have different name.
I am using AgContact model  only in child.

I have update code like below and my models also not conflict.
Now I am changing my question
I have added 4 condition to my model.
I need populate data based on that condition.I had created that condition for duplicate check.I need add duplicate check function with the help of birthdate and full name of candidate.So I have created below code.When I have debug at that time I found that When I am applying this condition my model not fetch data based on my condition it just populated data which I have last entered and saved in this model.
So I need help from Skuid team for correction in my code.I am adding my full code in detail.Please check my code and provide me some suggestion so I can complete my code.

---------------------------------
     var params = argumentse0],
        step = params.step,
        stepEditor = step.editor,
      $ = skuid.$;
    stepEditor.clearMessages();
   
    var contactModel=skuid.model.getModel(“AddContact”);
    var raw=contactModel.getFirstRow();
    var Firstname=raw.FirstName;
    var Middlename=raw.MiddleName;
    var LastName=raw.LastName;
    var Birthdate=raw.Birthdate;
    var Name=‘’;
   
    if(Firstname!==undefined)
    {
        Name+=Firstname;
    }
    if(Middlename!==undefined)
    {
        Name+=’ ‘+Middlename;
    }
    if(LastName!==undefined)
    {
        Name+=’ ‘+LastName;
    }
 
   
    if(Firstname===undefined  || LastName===undefined){
       
        alert(‘Please Enter First Name, Last Name’);
        return false;
    }
   
var Agcontact=skuid.model.getModel(“Agcontact”);
if(Firstname!==undefined){
  
var FirstNamecondition = Agcontact.getConditionByName(‘FirstName’);
Agcontact.setCondition(FirstNamecondition,Firstname,true);
}
if(Middlename!==undefined){
  
var Middlenamecondition = Agcontact.getConditionByName(‘MiddleName’);
Agcontact.setCondition(Middlenamecondition,Middlename,true);
}
if(LastName!==undefined){
  
var LastNamecondition = Agcontact.getConditionByName(‘LastName’);
Agcontact.setCondition(LastNamecondition,LastName,true);
}

if(Birthdate!==undefined){
  
    var bd=new Date(Birthdate); 
    var ageDifMs = Date.now() - bd.getTime();
    var ageDate = new Date(ageDifMs); // miliseconds from epoch
    var age=Math.abs(ageDate.getUTCFullYear() - 1970);
    if(age<18){
    alert(“Candidate’s age is less than 18”);   
    }
   
var Birthdatecondition = Agcontact.getConditionByName(‘Birthdate’);
Agcontact.setCondition(Birthdatecondition,Birthdate,true);
}
 skuid.model.updateData(8Agcontact]);
Agcontact.load();

try{
var FirstNameContact=Agcontact.getFirstRow().FirstName;
if(FirstNameContact!==undefined)
{
    var messages = ;
    var msg = ;
    msg.message=Name+’ is already registor.Do you want to continue?..Click me’;
    msg.severity=‘WARNING’;
    messages.push(msg);
if (messages.length) {
    var r = confirm(Name+’ is already registor’);
    if (r === true) {
        return true;
    } else {
       
          stepEditor.handleMessages(messages);
          return false;
    }
   
    }
           
}

}catch(e){
   
}

Can you provide me one example with the help of which i can fetch data from model based on my custom condition in java script.