Rename defaultValue filter to casting

app/config/collections2.php

@@ -174,7 +174,7 @@ $collections = [
                 'required' => false,
                 'default' => null,
                 'array' => false,
-                'filters' => ['defaultValue'],
+                'filters' => ['casting'],
             ],
             [
                 '$id' => 'signed',

app/init.php

@@ -184,7 +184,7 @@ DatabaseOld::addFilter('encrypt',
 /**
  * New DB Filters
  */
-Database::addFilter('defaultValue',
+Database::addFilter('casting',
     function($value) {
         return json_encode(['value' => $value]);
     },