How to filter the inserted records with a Button

Good Day,

In the screen of Checks and Payments, I need the lines of the grid filtered by Branch, when I select a vendor and add a new line I am filtering the options in the reference Nbr selector by the Branch/Company the user is logged on, but I also need to have the records filtered when I press the tab button "LOAD DOCUMENTS”

When I debugg the code, the foreach goes through the lines I need, but when I stop debugging it inserts every document from any Branch, not sure if it is because I am returning the baseMethod but I would appreciate assistance or some ideas on how I could insert only the records filtered.

 public class APPaymentEntry_Extension : PXGraphExtension<PX.Objects.AP.APPaymentEntry>
    {
        #region Event Handlers

        public delegate IEnumerable LoadInvoicesDelegate(PXAdapter adapter);
        [PXOverride]
        public virtual IEnumerable LoadInvoices(PXAdapter adapter, LoadInvoicesDelegate baseMethod)
        {

            PXSelectBase<APInvoice> invoiceQuery = new PXSelect<APInvoice,
            Where<APInvoice.vendorID, Equal<Current<Vendor.bAccountID>>,
            And<APInvoice.branchID, Equal<Current<AccessInfo.branchID>>,
            And<APInvoice.status, Equal<APDocStatus.open>>>>>(Base);

            foreach (APInvoice inv in invoiceQuery.Select())
            {
                APAdjust adj = new APAdjust
                {
                    AdjdBranchID = inv.BranchID,
                    AdjdDocType = inv.DocType,
                    AdjdRefNbr = inv.RefNbr,
                    AdjdDocDate = inv.DocDate,
                    AdjdFinPeriodID = inv.FinPeriodID,
                    CuryWhTaxBal = inv.CuryWhTaxBal,
                    CuryDocBal = inv.CuryDocBal,
                };
                Base.Adjustments.Insert(adj);
            }
            return baseMethod(adapter);
        }
    }
}
#endregion

public class APAdjust_Extension : PXCacheExtension<PX.Objects.AP.APAdjust>
{
    [PXMergeAttributes(Method = MergeMethod.Append)]
    [PXRestrictor(typeof(Where<APInvoice.branchID, Equal<Current<AccessInfo.branchID>>>), "")]
    public virtual string AdjdRefNbr { get; set; }
}