Merge pull request #386 from danielpeintner/issue-385

create shallow copy of form for uriVariables and update href

packages/core/src/consumed-thing.ts

@@ -494,13 +494,9 @@ export default class ConsumedThing extends TD.Thing implements WoT.ConsumedThing
         let ut = UriTemplate.parse(form.href);
         let updatedHref = ut.expand(options == undefined || options.uriVariables == undefined ? {} : options.uriVariables);
         if (updatedHref != form.href) {
-            // "clone" form to avoid modifying original form
-            let updForm = new TD.Form(updatedHref, form.contentType);
-            updForm.op = form.op;
-            updForm.security = form.security;
-            updForm.scopes = form.scopes;
-            updForm.response = form.response;
-
+            // create shallow copy and update href
+            let updForm = { ...form };
+            updForm.href = updatedHref;
             form = updForm;
             console.debug("[core/consumed-thing]",`ConsumedThing '${this.title}' update form URI to ${form.href}`);
         }