Ensure form doesn't inherit built in datasources

packages/standard-components/src/forms/Form.svelte

@@ -18,8 +18,16 @@
   let table
   let fieldMap = {}
 
+  // Returns the closes data context which isn't a built in context
+  const getInitialValues = context => {
+    if (["user", "url"].includes(context.closestComponentId)) {
+      return {}
+    }
+    return context[`${context.closestComponentId}`] || {}
+  }
+
   // Use the closest data context as the initial form values
-  const initialValues = $context[`${$context.closestComponentId}`] || {}
+  const initialValues = getInitialValues($context)
 
   // Form state contains observable data about the form
   const formState = writable({ values: initialValues, errors: {}, valid: true })