fix panic

pkg/items/middleware/caching_middleware.go

@@ -47,8 +47,10 @@ func (m cachingMiddleware) Get(ctx context.Context, spaceId, envId, collectionId
 		for _, al := range env.Aliases {
 			_ = m.cache.Set(makeKey(itm.SpaceID, al, itm.CollectionID, itm.ID), itm)
 		}
+		return itm.Clone(), err
 	}
-	return itm.Clone(), err
+
+	return nil, err
 }
 
 func (m cachingMiddleware) Update(ctx context.Context, item *service.Item, options ...*service.UpdateOptions) (err error) {
@@ -152,9 +154,10 @@ func (m cachingMiddleware) GetPublished(ctx context.Context, spaceId, envId, col
 		for _, al := range env.Aliases {
 			_ = m.cachePublished.Set(makeKey(itm.SpaceID, al, itm.CollectionID, itm.ID), value)
 		}
+		return itm.Clone(), err
 	}
 
-	return itm.Clone(), err
+	return nil, err
 }
 
 func (m cachingMiddleware) Archive(ctx context.Context, item *service.Item, options ...*service.ArchiveOptions) (err error) {