Merge branch 'main' into pr/466

src/Components/Form.php

@@ -30,6 +30,7 @@ class Form extends Component
 
     private $json;
 
+    /** @var Model|null */
     private $model;
 
     private static $defaultGuardAttributes = true;
@@ -42,6 +43,8 @@ class Form extends Component
 
     private static $instances = [];
 
+    private $resolvedData = false;
+
     /**
      * Create a new component instance.
      *
@@ -169,6 +172,20 @@ private function parseUnguardedValue($unguarded = null, $value = null)
         }
     }
 
+    /**
+     * Returns the resolved data but evualates it only once.
+     */
+    public function resolveData(): ?object
+    {
+        if ($this->resolvedData !== false) {
+            return $this->resolvedData;
+        }
+
+        $this->resolvedData = $this->guardedData() ?: $this->defaultData();
+
+        return $this->resolvedData;
+    }
+
     /**
      * This is a workaround for https://github.com/vuejs/core/issues/5339
      *
@@ -183,12 +200,10 @@ public static function selected(string $name, $value): bool
             return false;
         }
 
+        /** @var Form */
         $instance = Arr::last(static::$instances);
 
-        $data = data_get(
-            $instance->guardedData() ?: $instance->defaultData(),
-            static::dottedName($name)
-        );
+        $data = data_get($instance->resolveData(), static::dottedName($name));
 
         return is_array($data)
             ? in_array($value, $data, true)
@@ -403,7 +418,7 @@ private function defaultData(): ?object
     public function formData(): array
     {
         $data = [
-            'data' => $this->guardedData() ?: $this->defaultData(),
+            'data' => $this->resolveData(),
             'json' => $this->json,
         ];