- Filling values of context if vars exists within it

src/Method/FormContext.php

@@ -147,10 +147,13 @@ class FormContext implements FormContextInterface
 
     protected function fillValues() : void
     {
+        # Skipping overrides of this particular class vars as a security measure
+        $skipping = array_keys(array_change_key_case(get_class_vars(FormContext::class), CASE_LOWER));
+
         foreach($this->values as $property => $value) {
-            if (property_exists($this, $property)) {
+            if ( ! in_array(strtolower($property), $skipping) && property_exists($this, $property)) {
                 $this->$property = $value;
             }
         }
     }
-}
+}