use special tabbar the header will block

[steven-gao]

i use the tab_container widget as a child with EasyRefresh, when refreshing ,i switch the tab, easyrefresh's header will block.
我用了一个三方库作为EasyRefresh 一个子组件，下拉刷新中，我去切换tab，header会卡主，并且颜色也会变成灰色。请看我上传的video。还请帮忙看看。

12.18-headerblock.mp4

flutter doctor -v :
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[✓] Connected device (3 available)
• M2012K11AC (mobile) • 4388ca83 • android-arm64 • Android 13 (API 33)
• macOS (desktop) • macos • darwin-x64 • macOS 13.5.1 22G90 darwin-x64
• Chrome (web) • chrome • web-javascript • Google Chrome 120.0.6099.129

my code :
code.zip