clear vin when reselecting vin lookup method

src/layouts/vehicle-lookup/vehicle-lookup.vue

@@ -39,6 +39,7 @@ import { settleAllPromises } from '@/helpers/layout-helper';
 import { Form } from 'vee-validate';
 import BaseFormMixin from '@/mixins/base-form-mixin';
 import {vinLookupMethodSelections} from '@/constants/vin-lookup-methods';
+import { useMainStore } from '@/store';
 
 // Import Component
 import SiteFooter from '@/iss-components/site-footer/site-footer.vue';
@@ -99,6 +100,7 @@ export default {
     forwardButtonAction() {
       switch (this.selectedVinLookupMethod) {
         case vinLookupMethodSelections.MANUALVIN:
+          useMainStore().updateVehicleVin(null);
           this.$router.navigate(this.navigationScenarios.SELECTED_MANUAL_VIN, this.$route);
           break;
         case vinLookupMethodSelections.LICENSEPLATE: