Issue with resetting the selection and reloading visualization in ods-select

I am experiencing an issue with resetting the selection in an ods-select element that is used in my visualization.

              <div class="grid">       
                <div class="shared-width-ods-selects">
                    <div ods-facet-results="reglist"
                         ods-facet-results-facet-name="name"
                         ods-facet-results-context="myctx0"
                         ods-facet-results-sort="alphanum">
                        <ods-select ng-init="myctx0.parameters['refine.name'] = []"
                                    options="reglist"
                                    selected-values="myctx0.parameters['refine.name']"
                                    multiple="false"
                                    label-modifier="name"
                                    value-modifier="name"
                                    placeholder="Pflegeheime auswählen">
                        </ods-select>
                    </div>
                </div>
<div ng-if="myctx0.parameters['refine.name'].length > 0">
            <button ng-click="myctx0.parameters['refine.name'] = []">
                Auswahl löschen
                <i class="fa fa-times-circle" aria-hidden="true"></i>
            </button>
        </div>

                </div>

Issue: The button puts makes the filter empty, but the values are still visible in the chart

I want the chart to be empty again, when i press the button - but i dont know how.

Can you please help me with that?

Best regards, Boris