avoid extra condition containing all items

oml/item/api.py

@@ -52,9 +52,13 @@ def find(data):
         g = state.cache.get(key)
         if g is None:
             state.cache.lock(key)
+            if data.get('query', {}).get('conditions'):
                 items = q['qs'].options(load_only('id'))
+            else:
+                items = None
             qs = models.Find.query.filter_by(key=q['group'])
-            if items.first():
+            if items is None or items.first():
+                if items is not None:
                     qs = qs.filter(models.Find.item_id.in_(items))
                 values = list(qs.values('value', 'findvalue', 'sortvalue'))
                 for f in values: