[5.x] Fix dirty state on preferences edit form (#11655)

Co-authored-by: Jason Varga <[email protected]>

Author: duncanmcclean

resources/js/components/preferences/EditForm.vue

@@ -108,7 +108,7 @@ export default {
                 .patch(url, this.currentValues)
                 .then(() => {
                     this.$refs.container.saved();
-                    location.reload();
+                    this.$nextTick(() => location.reload());
                 })
                 .catch(e => this.handleAxiosError(e));
         },