Don't include the taxonomy's injected cascading data on the publish form

Author: jasonvarga

src/Http/Controllers/CP/Taxonomies/TermsController.php

@@ -286,9 +286,15 @@ protected function taxonomyToArray($taxonomy)
 
     protected function extractFromFields($term, $blueprint)
     {
+        // The values should only be data merged with the origin data.
+        // We don't want injected taxonomy values, which $term->values() would have given us.
+        $values = $term->inDefaultLocale()->data()->merge(
+            $term->data()
+        );
+
         $fields = $blueprint
             ->fields()
-            ->addValues($term->values()->all())
+            ->addValues($values->all())
             ->preProcess();
 
         $values = $fields->values()->merge([