skpm/file-loader corrupts output files
It's not actually `@skpm/file-loader`'s fault, but `file-loader`'s. 

See: 
* https://github.com/webpack/webpack/issues/5745
* https://github.com/webpack-contrib/file-loader/pull/183

Can you integrate upstream changes into the fork, at least up until v1.1.2 of `file-loader`? Thanks.

I guess, I can open PR straight into @skpm/file-loader?