Bruno Leroux 97c5249b32
Document Form.onChange precedence over DropdownButtonFormField.onChange (#175249)
## Description

This PR adds some documentation to `DropdownButtonFormField.onChanged`
to clarify the precedence order related to `Form.onChanged`.

## Related Issue

Fixes [DropdownButtonFormField changes not absorbing Form onChanged
Function](https://github.com/flutter/flutter/issues/86336)

## Tests

Documentation only
2025-09-12 11:55:13 +00:00
..
2025-09-11 14:40:28 +00:00
2025-07-22 17:51:20 +00:00

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