Odata model sends request many times

Hi,

I have a odata model. Whenever the function is called, the request gets sent twice. Here is my code

     populateTable:function(SalesOrg, FiscalYear, FiscalPeriod, CustomerHierarchy1, ProductLine, searchFilter){

        var oRowTemplate = new sap.m.ColumnListItem({

        cells : [

            new sap.m.Text({text : "{CustomerHierarchy1}" }),

            new sap.m.Text({text : "{ProductFamily}"})

            ]}

        ); 

        var oTable =this.getView().byId("populateTable");

        oTable.bindItems({

                path: URL.populateTable.entity,

                template:oRowTemplate

        });

        var oModel = new sap.ui.model.odata.ODataModel(URL.populateTable.service, true);

        alert(oModel);

        oTable.setModel(oModel);

  }

The alert is popped up only once. However, the request is twice. Everything including the URL parameters and response are same.