Fix module rebuilds that add new dependencies

[mattcompiles]

Currently, module rebuilds that add new dependencies to the compilation are broken. This is due to the processDependeciesQueue returning the already processed module entry from the queue, rather than re-processing the module.

The fix is to invalidate the module on the queue before calling processModuleDependencies so that it is correctly re-processed.

What kind of change does this PR introduce?

bugfix

Did you add tests for your changes?

Yes 👍

Does this PR introduce a breaking change?

No

What needs to be documented once your changes are merged?

Nothing

[webpack-bot]

For maintainers only:

• This needs to be documented (issue in webpack/webpack.js.org will be filed when merged)
• This needs to be backported to webpack 4 (issue will be created when merged)

[webpack-bot]

Thank you for your pull request! The most important CI builds succeeded, we’ll review the pull request soon.

[sokra]

Thanks