Why is record not updating on the data-table after editing under its search word

Question

When I enter search word "tes" to find the contact name "test1" and edit phone number 111 to 123, the data-table doesn't show the updated number for the search word "tes" specifically - but everywhere else work fine.

For example, if I enter "test" or "te", I would see updated number 123. Only when I search for the record under the search word I edited it on, that data-table doesn't show the update data.

I suspect it is a cache issue and data-table still retrieves from lightning data service.

import { LightningElement, wire, track } from 'lwc';
import getContactsList from '@salesforce/apex/ContactListController.getContacts';
import findContacts from '@salesforce/apex/ContactListController.findContacts';
import deleteContact from '@salesforce/apex/ContactListController.deleteContact';
import {refreshApex} from '@salesforce/apex';


const actions = [
    { label: 'Record Details', name: 'record_details'}, 
    { label: 'Edit', name: 'edit'}, 
    { label: 'Delete', name: 'delete'}
];

const columns = [
    {label: 'Contact Name', fieldName: 'Name', type: 'text'},
    {label: 'Contact Phone', fieldName: 'Phone', type: 'phone'},
    {   
        label: '',
        type: 'action',
        typeAttributes: {
            rowActions: actions,
            menuAlignment: 'right'
        }
    }
];

/** The delay used when debouncing event handlers before invoking Apex. */
const DELAY = 350;

export default class ContactList extends LightningElement {
    @track contactModal = false;
    @track isEditForm = false;
    @track record =[];
    
    columns = columns;
    @track error;
    @track contacts;
    refreshTable;
    
    @wire(getContactsList) contactList(result) {
        this.refreshTable = result;
        if (result.data) {
            this.contacts = result.data;
            this.error = undefined;
        } else if (result.error) {
            this.error = result.error;
            this.contacts = undefined;
        } 
    }
    
    handleKeyChange(event) {
        // Avoid a very large number of Apex method calls.
        window.clearTimeout(this.delayTimeout);
        const searchKey = event.target.value;

        this.delayTimeout = setTimeout(() => {
            findContacts({ searchKey })
                .then((result) => {
                    this.contacts = result;
                    this.error = undefined;
                })
                .catch((error) => {
                    this.error = error;
                    this.contacts = undefined;
                });
        }, DELAY);
    }
    // Row actions
    handleRowActions(event) {
        let actionName = event.detail.action.name;
        let row = event.detail.row;
        switch (actionName) {
            case 'record_details':
                this.viewRecord(row);
                break;
            case 'edit':
                this.editRecord(row);
                break;
            case 'delete':
                this.deleteRecord(row);
                break;
        }
    }
    // View current record
    viewRecord(currentRow) {
        this.contactModal = true;
        this.isEditForm = false;
        this.record = currentRow;
    }

    editRecord(currentRow) {
        // Edit current record
        this.contactModal = true;
        this.isEditForm = true;    
        // Passes record Id to template
        this.currentRecordId = currentRow.Id;
    }
    
    // closing modal box
    closeModal() {
        this.contactModal = false;
    }

    // handling record edit form submit
    handleSubmit(event) {
        // prevending default type sumbit of record edit form
        event.preventDefault();

        // querying the record edit form and submiting fields to form
        this.template.querySelector('lightning-record-edit-form').submit(event.detail.fields);
        // close modal
        this.contactModal = false;
    }
    handleSuccess() {
        console.log("Handled sucessfully!")
        return refreshApex(this.refreshTable);
    }

    deleteRecord(currentRow) {
        let currentRecord = [];
        currentRecord.push(currentRow.Id);

        deleteContact({contactIds: currentRecord})
        .then(() => {
            return refreshApex(this.refreshTable);

        })
        .catch(error => {
            console.log(error);
        });
    }

}