Use the clone helper instead of a interal function

package-lock.json

@@ -0,0 +1,122 @@
+{
+  "name": "@tp/tp-form",
+  "version": "1.1.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "@tp/tp-form",
+      "version": "1.1.0",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@tp/helpers": "^2.3.1",
+        "lit": "^2.8.0"
+      }
+    },
+    "node_modules/@lit-labs/ssr-dom-shim": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@lit-labs/ssr-dom-shim/-/ssr-dom-shim-1.2.1.tgz",
+      "integrity": "sha512-wx4aBmgeGvFmOKucFKY+8VFJSYZxs9poN3SDNQFF6lT6NrQUnHiPB2PWz2sc4ieEcAaYYzN+1uWahEeTq2aRIQ=="
+    },
+    "node_modules/@lit/reactive-element": {
+      "version": "1.6.3",
+      "resolved": "https://registry.npmjs.org/@lit/reactive-element/-/reactive-element-1.6.3.tgz",
+      "integrity": "sha512-QuTgnG52Poic7uM1AN5yJ09QMe0O28e10XzSvWDz02TJiiKee4stsiownEIadWm8nYzyDAyT+gKzUoZmiWQtsQ==",
+      "dependencies": {
+        "@lit-labs/ssr-dom-shim": "^1.0.0"
+      }
+    },
+    "node_modules/@tp/helpers": {
+      "version": "2.3.1",
+      "resolved": "https://gitea.codeblob.work/api/packages/tp-elements/npm/%40tp%2Fhelpers/-/2.3.1/helpers-2.3.1.tgz",
+      "integrity": "sha512-LjwqF6wHy6SrdY+0m5+fMP0CG8mwb85rVd7ZkMTpmkJXn4PiTYMaLXNcCjq6k4R5AwhzWUasUOteBJNyl9pynw==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/@types/trusted-types": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+      "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw=="
+    },
+    "node_modules/lit": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/lit/-/lit-2.8.0.tgz",
+      "integrity": "sha512-4Sc3OFX9QHOJaHbmTMk28SYgVxLN3ePDjg7hofEft2zWlehFL3LiAuapWc4U/kYwMYJSh2hTCPZ6/LIC7ii0MA==",
+      "dependencies": {
+        "@lit/reactive-element": "^1.6.0",
+        "lit-element": "^3.3.0",
+        "lit-html": "^2.8.0"
+      }
+    },
+    "node_modules/lit-element": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-3.3.3.tgz",
+      "integrity": "sha512-XbeRxmTHubXENkV4h8RIPyr8lXc+Ff28rkcQzw3G6up2xg5E8Zu1IgOWIwBLEQsu3cOVFqdYwiVi0hv0SlpqUA==",
+      "dependencies": {
+        "@lit-labs/ssr-dom-shim": "^1.1.0",
+        "@lit/reactive-element": "^1.3.0",
+        "lit-html": "^2.8.0"
+      }
+    },
+    "node_modules/lit-html": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/lit-html/-/lit-html-2.8.0.tgz",
+      "integrity": "sha512-o9t+MQM3P4y7M7yNzqAyjp7z+mQGa4NS4CxiyLqFPyFWyc4O+nodLrkrxSaCTrla6M5YOLaT3RpbbqjszB5g3Q==",
+      "dependencies": {
+        "@types/trusted-types": "^2.0.2"
+      }
+    }
+  },
+  "dependencies": {
+    "@lit-labs/ssr-dom-shim": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@lit-labs/ssr-dom-shim/-/ssr-dom-shim-1.2.1.tgz",
+      "integrity": "sha512-wx4aBmgeGvFmOKucFKY+8VFJSYZxs9poN3SDNQFF6lT6NrQUnHiPB2PWz2sc4ieEcAaYYzN+1uWahEeTq2aRIQ=="
+    },
+    "@lit/reactive-element": {
+      "version": "1.6.3",
+      "resolved": "https://registry.npmjs.org/@lit/reactive-element/-/reactive-element-1.6.3.tgz",
+      "integrity": "sha512-QuTgnG52Poic7uM1AN5yJ09QMe0O28e10XzSvWDz02TJiiKee4stsiownEIadWm8nYzyDAyT+gKzUoZmiWQtsQ==",
+      "requires": {
+        "@lit-labs/ssr-dom-shim": "^1.0.0"
+      }
+    },
+    "@tp/helpers": {
+      "version": "2.3.1",
+      "resolved": "https://gitea.codeblob.work/api/packages/tp-elements/npm/%40tp%2Fhelpers/-/2.3.1/helpers-2.3.1.tgz",
+      "integrity": "sha512-LjwqF6wHy6SrdY+0m5+fMP0CG8mwb85rVd7ZkMTpmkJXn4PiTYMaLXNcCjq6k4R5AwhzWUasUOteBJNyl9pynw=="
+    },
+    "@types/trusted-types": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+      "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw=="
+    },
+    "lit": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/lit/-/lit-2.8.0.tgz",
+      "integrity": "sha512-4Sc3OFX9QHOJaHbmTMk28SYgVxLN3ePDjg7hofEft2zWlehFL3LiAuapWc4U/kYwMYJSh2hTCPZ6/LIC7ii0MA==",
+      "requires": {
+        "@lit/reactive-element": "^1.6.0",
+        "lit-element": "^3.3.0",
+        "lit-html": "^2.8.0"
+      }
+    },
+    "lit-element": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-3.3.3.tgz",
+      "integrity": "sha512-XbeRxmTHubXENkV4h8RIPyr8lXc+Ff28rkcQzw3G6up2xg5E8Zu1IgOWIwBLEQsu3cOVFqdYwiVi0hv0SlpqUA==",
+      "requires": {
+        "@lit-labs/ssr-dom-shim": "^1.1.0",
+        "@lit/reactive-element": "^1.3.0",
+        "lit-html": "^2.8.0"
+      }
+    },
+    "lit-html": {
+      "version": "2.8.0",
+      "resolved": "https://registry.npmjs.org/lit-html/-/lit-html-2.8.0.tgz",
+      "integrity": "sha512-o9t+MQM3P4y7M7yNzqAyjp7z+mQGa4NS4CxiyLqFPyFWyc4O+nodLrkrxSaCTrla6M5YOLaT3RpbbqjszB5g3Q==",
+      "requires": {
+        "@types/trusted-types": "^2.0.2"
+      }
+    }
+  }
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@tp/tp-form",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "",
   "main": "tp-form.js",
   "scripts": {
@@ -13,6 +13,7 @@
   "author": "trading_peter",
   "license": "Apache-2.0",
   "dependencies": {
-    "lit": "^2.2.0"
+    "@tp/helpers": "^2.3.1",
+    "lit": "^2.8.0"
   }
 }

tp-form.js

@@ -5,6 +5,7 @@ This program is available under Apache License Version 2.0
 */
 
 import { LitElement, html, css } from 'lit';
+import { clone } from '@tp/helpers/clone.js';
 
 class TpForm extends LitElement {
   static get styles() {
@@ -373,27 +374,7 @@ class TpForm extends LitElement {
       value = control.defaultValue || control.getAttribute('default-value');
     }
 
-    let copy;
+    return clone(value);
-    switch (typeof value) {
-      case 'string':
-      case 'number':
-      case 'boolean':
-        copy = value;
-        break;
-      case 'object':
-        if (Array.isArray(value)) {
-          copy = value.slice(0);
-        } else if (value === null) {
-          copy = null;
-        } else if (value instanceof Date) {
-          copy = new Date(value.getTime());
-        } else {
-          copy = Object.assign({}, value);
-        }
-        break;
-    }
-
-    return copy;
   }
 
   _readonlyChanged() {