Problems when the same CSS @import is used in entry and on-demand chunks

[necolas]

If the CSS of a module contained in a loaded-on-demand chunk @import's a CSS file that was also imported by the CSS of a module in an entry chunk, the module that was created (by css-loader) is stripped from the output.

When the chunk is loaded, it throws an error because the import's module is missing from the build output. Also note the injection of this in the head of the document:

<style type="text/css">[object Object]</style>

(Note that this issue may be related to #11, and that the test case uses the style-loader separately in order to avoid the error from #11)

Test case

[sokra]

the problem is that the RemoveParentModulesPlugin runs before the ExtractTextPlugin...

Difficult to fix........ :(