Weird require.extensions after requiring mock-fs

[tomek-he-him]

Hi, thanks for this great library!

I run into a problem with mock-fs setting a weird { '.coffee': undefined } property on the global require.extensions object. This caused a problem when paired with node-dev. The problem I’ve described in the PR only appears when I require('mock-fs') in my tests.

I’ve fixed the interop on the node-dev side, so it’s not an urgent thing for me. But you might want to investigate this further.

[tschaub]

Thanks for the report. It looks like this is added by the rewire package.

I've proposed jhnns/rewire#98 as a fix for the issue. I'll leave this open until it is addressed upstream and we can pull in a fix here.

[tschaub]

Fix pulled in with #132. No more weird require.extensions properties in the next release.

[tomek-he-him]

🙌 Thanks a lot!