Wrong hmr

[anncwb]

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Describe the bug

I encountered some hot update issues in my project. The variables in the file seem to disappear after the hot update. It may be okay before the version around beta.36, and the specific version is not very certain. But it appeared after a certain upgrade
I tried to restore it in the smallest example, I think this should be a bug rather than a writing problem

Reproduction

• git clone https://github.com/anncwb/vite-hmr-bug
• yarn && yarn dev
• open http://localhost:3000/#/
• The scenario here is to dynamically add routing, because my project really has dynamically added routing that will disappear after the hot update (I only restore this situation, I think other situations should be similar to this one). I set a timer in router/index.ts, which is convenient for observing the value of router.getRoutes() after hot update
• Click the to page a link to jump to the PageA page
• Open /src/views/PageA.vue and modify the value of Page A to trigger hot update
• You can see as shown in the figure below. Because the timer is used here, it will print two consecutively, the length of 3 should be the timer before the hot update is triggered, and the length of 1 is the data after the hot update. The route added dynamically after the hot update here has been lost

This is just a minimal recurring example.
This problem has bothered me for a long time and has not been resolved.
If the above example does not explain well, you can try to pull this complicated example and reproduce it

• git clone https://github.com/anncwb/vue-vben-admin
• yarn && yarn dev
• open http://localhost:3100
• login
• Modify any content in /hooks/core/useContext.ts to trigger a hot update.
• You can see that the left menu and tabs are lost after the hot update

System Info

• vite version:2.0.4
• Operating System:mac
• Node version:14
• Package manager (npm/yarn/pnpm) and version:yarn

Logs (Optional if provided reproduction)

1. Run vite or vite build with the --debug flag.
2. Provide the error log here.

[cll123456]

热更新 ts 也不明显，ctrl + s 后，感觉更新不过来

[carl-jin]

热更新 ts 也不明显，ctrl + s 后，感觉更新不过来

估计是循环依赖注入太多了。会进入死循环