Reset native elements if reset() is called.

tp-form.js

@@ -168,7 +168,7 @@ class TpForm extends LitElement {
     // Also go through the form's native elements.
     for (let i = 0, li = this._nativeElements.length; i < li; i++) {
       const el = this._nativeElements[i];
-      // Skip native controls that are wrapped by custom elements already registerd (e.g. <era-input><input></era-input>)
+      // Skip native controls that are wrapped by custom elements already registered (e.g. <tp-input><input></tp-input>)
       if (!this._useValue(el) ||
         (this._isWrapped(el) && json[el.name])) {
         continue;
@@ -255,6 +255,17 @@ class TpForm extends LitElement {
         item.control.reset();
       }
     }
+
+    // Also go through the form's native elements.
+    for (let i = 0, li = this._nativeElements.length; i < li; i++) {
+      const el = this._nativeElements[i];
+      // Skip native controls that are wrapped by custom elements already registered (e.g. <tp-input><input></tp-input>)
+      if (this._isWrapped(el)) {
+        continue;
+      }
+
+      el.value = '';
+    }
   }
 
   focusFirstControl() {