[Bug] Copying same file to multiple targets requires copyUnmodified

[lmxdk]

When i try to copy the same file to multiple locations, it is only copied to the first target.
I need to copyUnmodified to get the file copied.
[copy-webpack-plugin] skipping 'print.css', because it hasn't changed

Configuration like:
[{from: "print.css", to: "first/print.css"},
{from: "print.css", to: "second/print.css"}]

[alexander-akait]

@lmxdk thanks seems bug