Fix user and owner filters

inventory-app/common.py

@@ -99,9 +99,7 @@ def build_query(base_query, fields=[], sort_fields={}):
     q = base_query.copy()
     for attr, title, tp in fields:
         key = attr.replace(".", "_")
-        if key in ("inventory_owner_username", "inventory_user_username"):
-            val = request.args.get(key, type=dict)
-        elif tp == list:
+        if tp == list:
             val = request.args.getlist(key)
             val = list(map(str, val))
         else: