Text background color height is inconsistent for non-english characters

Question

Text background color height is inconsistent for non-english characters. For selected texts, selectionHeightStyle can be used to fix this, but for other cases, the problem is still there. For example in SelectableText.rich, if a text of non-english characters is with a background color, the color height is still inconsistent.

import 'package:flutter/material.dart';

void main() => runApp(Home());

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.amber,
      ),
      home: Scaffold(
        appBar: AppBar(title: const Text('Demo')),
        body: Center(
            child: Container(
                child: Text(
          "曾经的我们",
          style: TextStyle(backgroundColor: Colors.blue),
        ))),
      ),
    );
  }
}