Fixed use of dictionaries as values in Terms query (#1921)

Fixes #1920

(cherry picked from commit fb18f38)

Author: miguelgrinberg

utils/templates/query.py.tpl

@@ -365,7 +365,7 @@ EMPTY_QUERY = MatchAll()
     {% elif k.name == "Terms" %}
     def _setattr(self, name: str, value: Any) -> None:
         # here we convert any iterables that are not strings to lists
-        if hasattr(value, "__iter__") and not isinstance(value, (str, list)):
+        if hasattr(value, "__iter__") and not isinstance(value, (str, list, dict)):
             value = list(value)
         super()._setattr(name, value)