I placed a number of pdfs into assets folder, which is a dump dir and expected that they would be copied into public folder, instead i got a compilation error:
{ ModuleParseError: Module parse failed: Unexpected token (1:0)
You may need an appropriate loader to handle this file type.
It appears that pdfs had round brackets in their names and as soon as I removed them all compiled as expected.
Generally brackets should be allowed in file names. Could you please look into this.