Allow Options-model to be either string or object

Author: jissereitsma

Form/Field/FieldType/Select.php

@@ -31,7 +31,9 @@ public function getOptions(): array
             return [];
         }
 
-        $options  = $this->objectManager->get($options);
+        if (is_string($options)) {
+            $options = $this->objectManager->get($options);
+        }
 
         if (!$options instanceof OptionSourceInterface) {
             return [];