Bug report

Using config with filesystem cache and mini-css-extract-plugin after switching from building project with dev-server to build with --watch I get runtime error Uncaught TypeError: Cannot read properties of undefined (reading 'dispose') ... .
I'm not shure if it's bug in plugin or webpack.

Actual Behavior

After build completes I open builded page and get runtime error:
Uncaught TypeError: Cannot read properties of undefined (reading 'dispose') ...
The code of main js entrypoint doesn't run.

Expected Behavior

No error and main js entrypoint runs.

How Do We Reproduce?

https://github.com/Raykeen/webpack-dev-watch-switch-hmr-issue