Qun Cheng 194fb17d2a
Make MergeSemantics be able to merge customAction (#168414)
Fixes https://github.com/flutter/flutter/issues/166588

When merging semantics, an empty customSemanticsActions was always used
instead of using the `_customSemanticsActions` of the current semantics
node.

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
2025-05-08 03:28:23 +00:00
..
2024-12-19 20:06:21 +00:00
2024-12-19 20:06:21 +00:00