Fix Calc

src/Calc/Valid.php

@@ -94,7 +94,9 @@ class Valid
 
                     if($option->getDefault() === null && $opt->isValid()) {
                         $option->setDefault($opt->getId());
-                        $this->engine->setVariable($option->getId(), $opt->getId());
+                        if(!$this->engine->hasVariable($option->getId())) {
+                            $this->engine->setVariable($option->getId(), $opt->getId());
+                        }
                     }
 
                     if($option instanceof Checkbox) {

src/Engine.php

@@ -440,6 +440,11 @@ class Engine
         $this->variables[$var] = $value;
     }
 
+    public function hasVariable($var): bool
+    {
+        return isset($this->variables[$var]);
+    }
+
     /**
      * @return float
      */

tests/Customer/CC/CalcTest.php

@@ -52,4 +52,19 @@ class CalcTest extends TestCase
         $this->assertTrue($this->engine->getArticle()->getOptionById('defa')->isValid());
     }
 
+    public function testContainerSelectIgnoreDefaultBinden(): void
+    {
+        $this->engine->setVariable('binden', 'leimes');
+        $this->engine->calc();
+        $this->assertTrue($this->engine->getArticle()->getOptionById('dd')->isValid());
+        $this->assertTrue($this->engine->getArticle()->getOptionById('defa')->isValid());
+
+        $this->engine->setVariable('dd', 'ddleim');
+        $this->engine->calc();
+
+        $this->assertTrue($this->engine->getArticle()->getOptionById('dd')->isValid());
+        $this->assertSame('ddleim', $this->engine->getArticle()->getOptionById('dd')->getRawValue());
+        $this->assertTrue($this->engine->getArticle()->getOptionById('defa')->isValid());
+    }
+
 }