AgGrid custom filter not created until interaction

I have a custom filter component on a column in my grid. I've noticed that the filter component is not constructed until I click on the filter icon in the column header. This means that the data is not filtered according to my default settings (e.g., filter out records where status == StatusEnum.Complete).

As a workaround, I've found that I can get a filter instance in the onGridReady event by calling api.getFilterInstance('status'), and this causes the filter component to be created and thereby apply default filtering.

This workaround seems a bit clunky. The filter variable is unused in the onGridReady event, which causes warnings in the IDE / build. Another developer may come along and delete this line of code, thinking it is unnecessary.

Is there a better way to force my custom filter to be instantiated when the grid is created? I'm using AgGrid 17.1 and Angular 4.4.

The grid is configured like so:

gridOptions: GridOptions = {
    enableFilter: true,
    onGridReady: (event) => {
        let filter = event.api.getFilterInstance("status"); // forces the filter component to be constructed
        let data = this.loadAsyncData();
        event.api.setRowData(data);
    },
    columnDefs: [
    ...
    {
        headerName: "Status",
        field: "status",
        filterFramework: MyCustomStatusFilterComponent,
        filterParams: {
            valueGetter: (obj) => { return obj.data.statusEnum; },
            hideCompleteByDefault: true,
            ...
        }
    },
    ....
    ]
}

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