HMR: onMounted called multiple times on hot reload (> 0.16.1)

[KammererTob]

This seems to have been introduced by version 0.16.2 (also present in ^0.17.0), most likely by this commit: 2fdcbde

Reproduction: https://stackblitz.com/edit/github-rkfgmhvm-mgtu91pd?file=src%2Fpages%2Findex.vue,package.json

1. Open Console
2. Make a change to index.vue and Save
3. Check console:

[vite] hot updated: /src/pages/index.vue
onMounted called!
[vite] hot updated: /__vue-router/auto-routes
onMounted called!

If you fix the version to 0.16.1 the issue disappears (onMounted does not seem to be called at all here).

[w1475963]

Previously, after saving a file, refreshing the page would not take me back to the homepage; after the update, if I save the .vue file of the page currently opened, refreshing the webpage would cause the router state to be lost, taking me back to the homepage.

Are there any potential issues when not refreshing the page (no hmr)? After the update, when I edit files and save to preview the webpage in real-time, it constantly takes me back to the homepage, which is very annoying.

[KammererTob]

@w1475963 Your issue sounds more like: #751

[w1475963]

@w1475963 Your issue sounds more like: #751

Thank you for telling me the real reason for this phenomenon. After I removed the loop in the code, it indeed no longer automatically returns to the homepage.

[l246804]

I removed the code that was added to enable HMR, the application still works normally. However, modifying any file related to the routes causes the entire page to reload.