diff --git a/modules/global/src/com/haulmont/cuba/core/entity/CategoryAttributeValue.java b/modules/global/src/com/haulmont/cuba/core/entity/CategoryAttributeValue.java
index a27eb4a318..dcc468f920 100644
--- a/modules/global/src/com/haulmont/cuba/core/entity/CategoryAttributeValue.java
+++ b/modules/global/src/com/haulmont/cuba/core/entity/CategoryAttributeValue.java
@@ -188,6 +188,8 @@ public class CategoryAttributeValue extends StandardEntity {
             booleanValue = null;
             entityValue = null;
             dateValue = null;
+            transientEntityValue = null;
+            transientCollectionValue = null;
         } else if (value instanceof Date) {
             setDateValue((Date) value);
         } else if (value instanceof Integer) {