Dynamic Style is not refreshed when variables are updated using needextend

[MrChocolateMoose]

I was experimenting with styling and I created a predicate based assignment of style based upon the status field.

ubproject.toml

[needs.global_options.style]
predicates = [
    [
        "status == 'passed'",
        "green_bar",
    ],
    [
        "status == 'failed'",
        "red_bar",
    ],
]
default = "discreet"

For objects that applied their status within the need it was working

file abc.rst

.. need:: abc
  :id: ABC
  :status: passed

But when I added the :status: via needextend it did not work. The field was added fine, but the style was not recomputed.

file def.rst

.. need:: def
   :id: DEF

file def2.rst

.. needextend:: def
   :status: passed

In the case of styling, is there any fundamental arch reason why this isn't supported? Would either deferring rendering or re-rendering be viable? Would any approach also allow for other fields like template and layout to achieve the same dynamism?