tabedit: Save empty values

Author: ewie

app/gws/ext/action/tabedit/__init__.py

@@ -160,7 +160,7 @@ def api_save_data(self, req: t.IRequest, p: SaveDataParams) -> SaveDataResponse:
             uid = None
 
             for a, v in zip(p.attributes, rec):
-                if v is None or v == '':
+                if v is None:
                     continue
                 atts.append(t.Attribute(name=a.name, value=v))
                 if a.name == tbl.table.key_column: