diff --git a/modules/backend/widgets/Form.php b/modules/backend/widgets/Form.php
index 7cbb8cb24..d2c1d5f38 100644
--- a/modules/backend/widgets/Form.php
+++ b/modules/backend/widgets/Form.php
@@ -1227,8 +1227,8 @@ public function getSaveData(): array
             // Exclude fields that didn't provide any value
             $fieldValue = $this->dataArrayGet($result, $parts, FormField::NO_SAVE_DATA);
             if ($fieldValue === FormField::NO_SAVE_DATA) {
-                if ($widget->getConfig('type') === 'taglist' && $widget->getConfig('mode') === 'relation') {
-                    $fieldValue = [];
+                if ($widget->getConfig('type') === 'taglist') {
+                    $fieldValue = in_array($widget->getConfig('mode'), ['array','relation']) ? [] : '';
                 } else {
                     continue;
                 }