WebpackMd5Hash causes polyfills to have the same name but different content

[saldoukhov]

• I'm submitting a ...
  [ X] bug report
  [ ] feature request
  [ ] question about the decisions made in the repository

This is quite easy to reproduce.

1. Do a prod build on master
2. Copy aside polyfills bundle
3. Switch to material2 branch
4. Do a prod build
5. Compare the polyfills bundle to the one from step 2
   6(optional). Repeat the above steps with WebpackMd5Hash commented out, the problem goes away.

Result: two files have the same name but different content
Expected: two files have different names

[davidmarquis]

I experienced the same issue. Removing the use of WebpackMd5Hash (and thus using the standard hashing mechanism of Webpack) removed the issue... why is WebpackMd5Hash used exactly?

[riddla]

We experienced the same issue just today. Removing the plugin "fixed" it, but why was this bug closed?
The webpack-md5-hash plugin seems to have some serious issues: erm0l0v/webpack-md5-hash#7 and erm0l0v/webpack-md5-hash#5.