diff --git a/src/Plugin/Field/FieldWidget/EntityReference.php b/src/Plugin/Field/FieldWidget/EntityReference.php
index 0d52ea4..2c68907 100644
--- a/src/Plugin/Field/FieldWidget/EntityReference.php
+++ b/src/Plugin/Field/FieldWidget/EntityReference.php
@@ -305,7 +305,8 @@ class EntityReference extends WidgetBase implements ContainerFactoryPluginInterf
         // need to check if submit came from this instance.
         $field_name_key = end($trigger['#parents']) === 'target_id' ? 2 : static::$deleteDepth + 1;
         $field_name_key = sizeof($trigger['#parents']) - $field_name_key;
-        $is_relevant_submit &= ($trigger['#parents'][$field_name_key] === $this->fieldDefinition->getName());
+        $is_relevant_submit &= ($trigger['#parents'][$field_name_key] === $this->fieldDefinition->getName()) &&
+          (array_slice($trigger['#parents'], 0, $field_name_key) == array_slice($element['#field_parents'], 0, $field_name_key));
       }
     };