The visual bar is not fully languaged

[little-alei]

Describe the bug
When I split languageCode and countryCode with _, the visual language bar shows that the language is incomplete, but the logs show that it is full. When using - as a split, everything works fine

Extension Version
v2.12.0

Framework/i18n package you are using
flutter

To Reproduce
Steps to reproduce the behavior:

1. Use _ to split languageCodede adb countryCode

Device Infomation

• OS: windows
• Version: 11
• VS Code Version: 1.89.1

Extension Log

📂 Directory structure: file
🗃 Path Matcher Regex: /^(?<locale>[\w-_]+)\.(?<ext>json|ya?ml|json5)$/

📂 Loading locales under d:\FlutterApp\mile_taxi\assets\i18n
	📑 Loading (en) en.json [1715417509493.0366]
	📑 Loading (zh) zh.json [1715417201578.5874]
	📑 Loading (zh) zh_HK.json [1715421518364.5874]
	📑 Loading (zh) zh_TW.json [1715421518364.5874]

Screenshots