When a grid cell (aka, column) is modified to include HTML such as a link, it will not print when printing the full grid unless you take the additional step of telling the system what to print.

1. The barcode field in staff/share/holds/grid.component.html is modified ng-template so that it links to the item page:

<ng-template #barcodeTmpl let-hold="row" let-col="col">
    <a href="/eg/staff/cat/item/{{hold.cp_id}}/summary">
        <ng-container *ngIf="col.name == 'current_item' && hold.current_copy">
            {{hold.cp_barcode}}
        </ng-container>
        <ng-container *ngIf="col.name == 'requested_item' && isCopyHold(hold)">
            {{hold.cp_barcode}}
        </ng-container>
    </a>
</ng-template>

2. Below that, the grid column is defined:

<eg-grid-column i18n-label label="Current Item" name='current_item'
    [cellTemplate]="barcodeTmpl">
</eg-grid-column>

3. The grid.component.ts file is modified to specify the alternate text that should print out:

this.cellTextGenerator = {
    title: row => row.title,
    cp_barcode: row => (row.cp_barcode == null) ? '' : row.cp_barcode,
    current_item: row => (row.cp_barcode == null) ? '' : row.cp_barcode,
    requested_item: row => (row.cp_barcode == null) ? '' : row.cp_barcode,
    ucard_barcode: row => row.ucard_barcode
};