Fix for non-string numbers

src/controller/python/chip/yaml/format_converter.py

@@ -198,7 +198,7 @@ def convert_to_data_model_type(field_value, field_type):
         return field_value
     # YAML conversion treats all numbers as ints. Convert to a uint type if the schema
     # type indicates so.
-    elif (field_type == uint):
+    elif (type(field_value) is str and field_type == uint):
         # Longer number are stored as strings. Need to make this conversion first.
         # The value can be represented in binary, octal, decimal or hexadecimal
         # format.