Asset variant detection should only work on directory names that are parse-able by the framework (2x, 3x) #69388
Description
Steps to Reproduce
Can repro from 1.17 to 1.23 master.
Run https://github.com/AlexV525/flutter_test_app (test-assets-conflict-page) for repro demo with master.
- Add two assets with same name, but not the same path. (e.g.
assets/a.pngandassets/b/a.png) - Display those images in Flutter App.
Expected results: Display two different pictures/assets.
Actual results: Displayed same pictures/assets, which is the deeper one.
[✓] Flutter (Channel update-length-limiting-formatter, 1.23.0-19.0.pre.78, on Mac OS X 10.15.7 19H2 darwin-x64, locale zh-Hans-CN)