CASH-1953: fix bug where selected provider can be null if loading w a preselected mobile date/time and then switching to inshop

src/layouts/schedule/schedule.vue

@@ -1737,6 +1737,8 @@ export default {
                 // make sure a selectedProvider exists
                 if (this.lastSelectedInshopOrDropoffProvider) {
                     this.updateSelectedProvider(this.lastSelectedInshopOrDropoffProvider);
+                } else {
+                    this.updateSelectedProvider();
                 }
             } else {
                 this.appointmentType = null;