diff --git a/modules/backend/formwidgets/Repeater.php b/modules/backend/formwidgets/Repeater.php
index 70205ff15..42cc754c5 100644
--- a/modules/backend/formwidgets/Repeater.php
+++ b/modules/backend/formwidgets/Repeater.php
@@ -114,7 +114,9 @@ class Repeater extends FormWidgetBase
 
         $itemIndexes = post(self::INDEX_PREFIX.$this->formField->getName(false), $loadValue);
 
-        if (!is_array($itemIndexes)) return;
+        if (!is_array($itemIndexes)) {
+            return;
+        }
 
         foreach ($itemIndexes as $itemIndex) {
             $this->makeItemFormWidget($itemIndex);
@@ -125,13 +127,16 @@ class Repeater extends FormWidgetBase
     protected function makeItemFormWidget($index = 0)
     {
         $loadValue = $this->getLoadValue();
-        if (!is_array($loadValue)) $loadValue = [];
+        if (!is_array($loadValue)) {
+            $loadValue = [];
+        }
 
         $config = $this->makeConfig($this->form);
         $config->model = $this->model;
         $config->data = array_get($loadValue, $index, []);
         $config->alias = $this->alias . 'Form'.$index;
         $config->arrayName = $this->formField->getName().'['.$index.']';
+        $config->isNested = true;
 
         $widget = $this->makeWidget('Backend\Widgets\Form', $config);
         $widget->bindToController();
diff --git a/modules/backend/widgets/Form.php b/modules/backend/widgets/Form.php
index 6f246139e..c9ec6cdd1 100644
--- a/modules/backend/widgets/Form.php
+++ b/modules/backend/widgets/Form.php
@@ -63,6 +63,12 @@ class Form extends WidgetBase
      */
     public $arrayName;
 
+    /**
+     * @var bool Used to flag that this form is being rendered as part of another form,
+     * a good indicator to expect that the form model and dataset values will differ.
+     */
+    public $isNested = false;
+
     //
     // Object properties
     //
@@ -124,8 +130,9 @@ class Form extends WidgetBase
             'secondaryTabs',
             'model',
             'data',
-            'arrayName',
             'context',
+            'arrayName',
+            'isNested',
         ]);
 
         $this->widgetManager = WidgetManager::instance();
@@ -1070,7 +1077,7 @@ class Form extends WidgetBase
                 ]));
             }
 
-            $fieldOptions = $this->model->$fieldOptions($field->value, $field->fieldName);
+            $fieldOptions = $this->model->$fieldOptions($field->value, $field->fieldName, $this->data);
         }
 
         return $fieldOptions;