Hot code reload of NPM dependencies does not work

[sudorock]

Context
We write all our UI components in JS in a separate project, compile it as a library and import it into CLJS.

Problem
Hot code reload doesn't work when the UI project is installed using npm link or npm install /local/path.

Expected solution
Some way to hot code reload local npm libraries.

Things tried
Tried touching the external project's package json (the built one) as per #759

[sirmspencer]

We have the same issue. It was working in 2.16.12, we jumped all the way to 2.27.4 and its not working anymore. #759 references a feature going away after 2.8. Not sure how it was working through 2.16 then.