jscheffl commented on issue #43433:
URL: https://github.com/apache/airflow/issues/43433#issuecomment-2455643752
Okay, @raphaelauv maybe you were hitting a side effect... I did a check on
my side adding to airflow/example_dags/example_params_ui_tutorial.py with:
```
# An array of numbers
"array_of_dicts": Param(
[{}, {"key": "value"}, {"one": "two"}],
"Only dicts are accepted in this array",
type="array",
title="Array of dicts",
items={"type": "object"},
),
```
..alongside to other parameters.
This renders correctly on my side with:
Can you check adding a "valid" default value? Because you define `None`per
default - which is not valid according to specs. So maybe this special case
with a invalid/empty default was not tested. If you want to permit `None` as
valid value then you need to set `type=["none", "array"]`.
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